NCBS


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockSharesIssued

us-gaap:PreferredStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted
us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:InterestAndFeeIncomeLoansAndLeases

us-gaap:InterestExpense

us-gaap:InterestExpenseLongTermDebt

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestPaidNet

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:Assets
dei:LegalEntity

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AmortizationOfIntangibleAssets
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsNetIncludingGoodwill
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:LongTermDebt
us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType
us-gaap:LongtermDebtType

us-gaap:MinorityInterest

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity
us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

ncbs:IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets

ncbs:IncreaseDecreaseInCertificatesOfDepositInOtherBanks

ncbs:IncreaseDecreaseInInterestPayableAndOtherLiabilities
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
ncbs:NetBookValueOfMsrAssetToLoansServicedForOthers

ncbs:OccupancyEquipmentAndOfficeExpense

ncbs:PercentageOfAllowanceForLoanLosses
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
ncbs:ServicingAssetAtAmortizedValueCapitalization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:AmortizationOfMortgageServicingRightsMSRs

us-gaap:BankOwnedLifeInsuranceIncome

us-gaap:BusinessDevelopment
us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DepreciationAmortizationAndAccretionNet
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

us-gaap:FeesAndCommissionsMortgageBankingAndServicing

us-gaap:FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableModificationsNumberOfContracts2

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FinitelivedIntangibleAssetsAcquired1

us-gaap:GainLossOnDispositionOfOtherFinancialAssets

us-gaap:GainLossOnSalesOfLoansNet

us-gaap:GainsLossesOnSalesOfAssets

us-gaap:GoodwillAcquiredDuringPeriod

us-gaap:IncomeTaxesPaid

us-gaap:IncreaseDecreaseInDeposits

us-gaap:InformationTechnologyAndDataProcessing

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseShortTermBorrowings

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestIncomeSecuritiesTaxExempt

us-gaap:InterestIncomeSecuritiesTaxable

us-gaap:LaborAndRelatedExpense

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue

us-gaap:NoninterestExpense

us-gaap:NoninterestIncome

us-gaap:NoninterestIncomeOther

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax

us-gaap:OtherInterestAndDividendIncome

us-gaap:OtherNoninterestExpense

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForProceedsFromProductiveAssets

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:PaymentsToMinorityShareholders

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfLoansHeldForSale

us-gaap:ProceedsFromShortTermDebt

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForLoanAndLeaseLosses

us-gaap:ProvisionForLoanLossesExpensed
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:ServicingAssetAtAmortizedValueAdditions

us-gaap:ServicingAssetAtFairValueAdditions
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercisedNetOfTaxBenefitExpense
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisions

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment
dei:LegalEntity, us-gaap:StatementScenario
ncbs:BusinessAcquisitionAcquireePercentageOfAcquirorsTotalAssets
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
ncbs:CertificatesOfDepositFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

ncbs:CollateralDependentFinancingReceivableRelatedAllowance
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:CollateralDependentFinancingReceivableUnpaidPrincipalBalance
us-gaap:Collateral
us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:CollateralDependentFinancingReceivableWithNoRelatedAllowance
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:CollateralDependentFinancingReceivableWithRelatedAllowance
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:FinancingReceivablePercentNonaccrual

ncbs:FinancingReceivableRecordedInvestmentCurrentPercentageOfLoan

ncbs:FinancingReceivableRevolvingConvertedToTermLoan
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
ncbs:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearSix
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
ncbs:FiniteLivedIntangibleAssetsAmortizationExpenseYearSix

ncbs:LongTermDebtPercentageBearingFixedInterestRatePercentage

ncbs:LongtermDebtPercentageBearingVariableInterestRatePercentage
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
ncbs:MsrAsset
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
ncbs:OtherInvestmentFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

ncbs:PercentageOfAllowanceForCreditLossesToLoans
us-gaap:InternalCreditAssessment
ncbs:PercentageOfLoansByPastDueStatus
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
ncbs:PercentageOfNonAccrualLoan
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancialInstrument
ncbs:PercentageOfTotalDebtSecuritiesAvailableForSale
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
ncbs:PercentageOfTotalNotesReceivableGross
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
ncbs:ResidentialMortgageLoansServicedForOthers
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
ncbs:ServicingAssetAtAmortizedCostBeforeValuationAllowance

ncbs:TimeDepositInOtherBanks

ncbs:TrustPreferredSecuritiesQualifyAsTier1Capital
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:BankOwnedLifeInsurance
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:CashAndDueFromBanks
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:CashSurrenderValueFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:CommonStockValueOutstanding
us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:LongtermDebtType

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleRestricted

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
us-gaap:FinancialInstrument

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions
us-gaap:FinancialInstrument

us-gaap:Deposits
dei:LegalEntity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:DepositsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
us-gaap:LongtermDebtType
us-gaap:FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd

us-gaap:FinancingReceivableAllowanceForCreditLosses
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:FinancingReceivablePercentPastDue1

us-gaap:FinancingReceivableRecordedInvestmentCurrent

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus

us-gaap:FinancingReceivableRevolving
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:InterestBearingDepositLiabilities

us-gaap:InterestBearingDepositsInBanks
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:InterestReceivable

us-gaap:InterestReceivableAndOtherAssets
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LoansHeldForSaleFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
dei:LegalEntity
us-gaap:LoansPayable
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LoansReceivableFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:LoansReceivableHeldForSaleAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementBasis

us-gaap:NoninterestBearingDepositLiabilities

us-gaap:NotesReceivableGross
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory
us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment
us-gaap:InternalCreditAssessment

us-gaap:NotesReceivableNet

us-gaap:OtherInvestments

us-gaap:OtherLiabilities

us-gaap:RestrictedCashAndCashEquivalents
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:ServicingAssetAtAmortizedValue
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:ServicingAssetAtFairValueAmount
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShortTermBorrowings
us-gaap:ShortTermDebtType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:ShorttermDebtFairValue
us-gaap:FairValueByMeasurementBasis
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance

Tables

  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:CommonStockSharesIssued ███▇▇▇▇▇▇▇▇▇▇▆▆▆▆▂▂▂▂▂▂▂▂▂▂▂▂▁▁10.44376310.42889610.6102599.3870969.3513599.4559559.5247779.604169.669359.7267839.8491679.8261979.8900888.6414488.5962418.632248.6485034.2630664.1910674.0108354.02014.0832014.1244394.1472454.196674.2993114.3034074.2806584.2797453.4943283.479888NANANA
us-gaap:PreferredStockSharesIssued ▄▄▄▄▄▄▄▄0.00.00.00.00.00.00.00.0NANA0.0NANANANANA0.01220.01220.01220.01220.02440.02440.02440.02440.02440.02440.02440.02440.02440.02440.0244NANANA
us-gaap:CommonStockSharesOutstanding ███▇▇▇▇▇▇▇▇▇▇▆▆▆▆▂▂▂▂▂▂▂▂▂▂▂▂▁▁10.42440710.40837510.5877389.3634079.327429.4308519.4952659.5766449.6428349.6989979.8182479.7987249.8626158.6047638.5532928.5824258.5986884.2039084.1543773.957523.9667854.0205044.0582084.0978014.1472264.2404844.2410444.2285354.2276223.4327833.425413NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█10.51973910.800636NA9.696859.6923789.758351NA9.9499.96985410.224788NA10.4086839.9916258.958425NA8.9697357.6291754.456442NA4.3979064.3662954.307274NA4.3199754.3320164.283888NA4.2380094.0084263.445664NA3.4313213.4631373.494795
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█10.41722610.516NA9.3479.3749.461NA9.6339.6390989.765375NA9.8366469.5157458.584289NA8.6077197.2572184.18192NA3.9610044.0073684.031323NA4.1187924.2121744.242887NA4.2283863.9997323.432387NA3.4145613.4522093.480355
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount █▁0.20.1NA0.10.10.1NA0.10.10.1NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▄▃▄▅▆▄▄▄▃▃▃▃▃▃▃▃▂▂▃▂▃▃▂▃▂▂▁▂█▁▁▁▁▁1.291.01.20000000000000021.451.981.091.13999999999999971.131.010.980.92999999999999970.970.880.720.73000000000000020.720.410.610.690.640.720.750.58000000000000010.660.590.510.14999999999999990.622.790.130.190.190.090.06
us-gaap:EarningsPerShareDiluted ▄▃▄▄▆▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▃▃▂▂▂▂▁▂█▁▁▁▁▁1.280.981.15999999999999931.41.911.051.11.090.980.940.87999999999999990.910.830.690.70000000000000020.690.390.570.63999999999999990.580.660.70.550.630.580.50.14999999999999990.622.780.130.190.190.090.06
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:AdministrativeService██▇▆▅▄▅▃▃▂▂▂▁2.2692.3222.192.1132.0021.811.9681.7321.7381.6041.5441.51.433NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:CreditAndDebitCard▇▆▇█▇▄▆▅▃▂▂▂▁1.6371.5621.6831.7351.661.421.5831.4811.3581.2431.2681.2251.173NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:DepositAccount▁███▇▇▇█▇▇██▆0.8131.2251.2371.2231.1941.171.2081.2471.21.191.2371.2381.121NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:FiduciaryAndTrust▂▅▅▅▄▁▅▇█▆▆▁▂1.511.5791.5961.5941.5691.4681.5831.6381.6711.6061.61.4791.485NANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestAndFeeIncomeLoansAndLeases ███▇▇▇▇▇▆▇▆▆▆▅▄▅▄▂▂▂▂▂▂▂▂▂▂▃▂▁▁▁▁▁33.76633.77833.01331.33431.20929.96829.30928.99727.19328.45427.44327.32924.67321.09519.9721.04916.83611.5711.71711.15910.78311.97911.51311.94511.61611.00711.53512.8569.8286.7817.3446.8156.536.456
us-gaap:InterestExpense ▇█████▇▇▆▅▄▄▃▂▂▂▂▁▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▂5.3955.745.7235.4775.6265.6845.2984.9384.7423.9113.3293.0632.3531.7661.8681.8911.8851.691.8121.8421.8181.7411.7511.731.8331.7531.7091.6341.541.4091.5241.5621.6091.835
us-gaap:InterestExpenseLongTermDebt █▅▇▇████▇▆▇▄▃▁0.9020.7560.8560.8810.8960.9070.8890.8830.8690.8190.8470.6990.6370.558NANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestIncomeExpenseNet ███▇▇▇▇▇▆▇▇▇▆▅▅▅▄▃▂▂▂▃▂▃▂▂▂▃▂▁▁▁▁▁31.49731.26330.46929.1928.94427.47527.02926.94225.80326.87426.50726.39124.52721.31720.02420.90416.46610.73910.65110.0179.71311.00310.51310.89310.4969.9810.53111.8038.8185.7526.2125.655.3345.069
us-gaap:InterestPaidNet █▇▆▆▆▆▅▄▄▃▂▁6.7976.0775.6525.5915.6255.4665.2434.724.6183.9563.8153.034NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AllocatedShareBasedCompensationExpense ▇▇█▇▆▆▇▆▆▇▇▅▂▁1.31.31.41.21.11.11.31.11.11.21.21.00.5160.384NANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▇▅▇▇█▅▆▆▅▅▅▆▅▄▄▄▂▂▂▂▂▂▂▂▂▂▁▃▅▁▁▁▁▁18.15513.99418.05218.21521.47713.70214.96514.20713.08112.54612.8214.71812.8499.3139.0829.9674.8674.1494.4873.9034.4334.8213.6244.343.2173.4771.4475.34612.0231.1931.6561.4310.8770.658
us-gaap:IncomeTaxExpenseBenefit ▇▅█▇▄▅▆▅▅▅▅▇▆▅▅▅▃▃▃▂▃▃▂▃▂▂▁▄▂▁▂▁▁▁4.5763.3215.674.6032.8333.3524.0153.2683.2552.9083.6625.1324.443.0322.9393.4381.5451.4491.6371.2811.4631.7081.1821.5520.6411.2320.452.4210.5470.4190.7010.4530.2320.143
us-gaap:ProfitLoss ▆▅▆▆█▅▅▅▅▅▄▅▄▃▃▃▂▂▂▂▂▂▂▂▂▂▁▂▅▁▁▁▁▁13.57910.67312.38213.61218.64410.3510.9510.9399.8269.6389.1589.5868.4096.2816.1436.5293.3222.72.852.6222.973.1132.4422.7882.5762.2450.9972.92511.4760.7740.9550.9780.6450.515
us-gaap:OtherComprehensiveIncomeLossNetOfTax █▆▄▅▆█▆▃▄▂▃▄▅▅▁▄▅▅▄▅▄▅▄▄▄▄▄▄▄▄▄▄▄▄5.7093.161-0.2581.4983.1995.6192.417-1.339-0.234-3.401-1.79-0.2621.2371.75-5.036-0.6241.0550.898-0.3120.697-1.00.564-0.033-0.0320.2730.1570.086-0.56-0.8570.314-0.4460.311-0.0740.202
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▇▅▅▆█▆▅▄▄▃▃▄▄▃▁▃▂▂▂▂▁▂▂▂▂▂▁▂▄▁▁▁▁▁19.28813.83412.12415.1121.84315.96913.3679.69.5926.2377.3689.3249.6468.0311.1075.9054.3773.5982.5383.3191.973.6772.4092.7562.8492.4021.0832.36510.6191.0880.5091.2890.5710.717
us-gaap:NetIncomeLoss ▆▅▆▆█▅▅▅▅▅▄▄▄▃▃▃▂▂▂▂▂▂▂▂▂▂▁▂▅▁▁▁▁▁13.47810.55512.29513.5318.54910.26710.86310.8599.7379.5779.1039.5128.3286.2086.0876.4643.2572.6542.8192.5942.9353.082.4162.7652.5542.2140.9822.94711.4570.7550.9370.9650.6320.502
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▇█▆▆▇▆▆▆▇▅▅▆▆▆▅▅▅▄▄▄▄▄▃▃▃▄▃▁▃▃▃▃▃▃0.1010.1180.0870.0820.0950.0830.0870.080.0890.0610.0550.0740.0810.0730.0560.0650.0650.0460.0310.0280.0350.0330.0260.0230.0220.0310.015-0.0220.0190.0190.0180.0130.0130.013
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:Assets █▇▆▅▅▅▅▅▅▆▅▅▅▄▄▄▄▂▂▂▂▂▂▂▂▂▂▂▂▁▁4541.2283732.5543577.263105.6713054.8133041.0913096.5353000.9022922.1513223.9352932.4332845.732825.9172292.6442300.8792269.4872256.7851244.0351214.4391166.8521185.2761204.4021215.2851169.621173.7721217.7091198.8031134.671088.44682.051745.255NANANA
us-gaap:Liabilities █▆▆▅▅▅▅▅▅▆▅▅▅▄▄▄▄▂▂▂▂▂▂▂▂▂▂▂▂▁▁4008.3753220.8143060.272676.9292642.6652641.4982709.1832622.9992550.8662859.2842567.5542484.6582472.9612007.1312024.5141992.8561972.5121129.1881104.7521061.841071.2811090.6621104.2181059.9111065.6351110.4311093.9241031.129987.113603.649667.877NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▆▅▅▅▅▅▅▆▅▅▅▄▄▄▄▂▂▂▂▂▂▂▂▂▂▂▂▁▁4541.2283732.5543577.263105.6713054.8133041.0913096.5353000.9022922.1513223.9352932.4332845.732825.9172292.6442300.8792269.4872256.7851244.0351214.4391166.8521185.2761204.4021215.2851169.621173.7721217.7091198.8031134.671088.44682.051745.255NANANA
us-gaap:StockholdersEquity ███▆▆▆▆▆▆▅▅▅▅▄▄▄▄▂▁▁▂▂▂▁▁▁▁▁▁▁▁532.033510.971516.262428.014411.415398.767386.609377.171370.584363.988364.178360.426352.384285.022275.947276.269283.976114.615109.501104.857113.868113.648111.008109.676108.067107.23104.862103.54101.30478.33877.333NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:AmortizationOfIntangibleAssets ▆▇▆▆▇▇▇▇▇███████▆▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁0.880.9930.9360.9140.9691.0531.0531.0541.11.1821.1811.1731.1781.1621.1631.1720.8740.2490.2440.2480.260.2750.2750.2840.3150.3350.3350.3420.2860.1480.1490.1550.1680.168
us-gaap:PropertyPlantAndEquipmentNet ██▇▆▆▆▆▆▆▆▆▆▆▅▆▆▆▃▃▃▃▃▃▃▃▃▃▃▃▁▁59.89660.27656.46947.6849.10949.44348.17347.30546.78546.26347.15147.43247.40144.27545.86247.03847.11830.12429.61329.89131.19831.71331.92431.37828.61729.77629.84529.48629.22419.68719.602NANANA
us-gaap:Goodwill ███▁▁▁▁▁▁▁▁▁▁151.198151.198151.198107.366107.366107.366107.366107.4107.366107.366107.366107.4107.0NA0.066NANANA0.8NANANA0.8NANANA0.8NANANA0.8NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▁▂▃▂▃▅▆▇█12.89613.77614.76914.00514.91915.88816.94117.99418.758NA21.04NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IntangibleAssetsNetIncludingGoodwill ███▄▄▄▄▄▄▅▅▅▅▁▁▁▁164.094164.974165.967121.371122.285123.254124.307125.36126.124127.224128.406129.588128.87186.77687.93889.190.271NA3.793NANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel,us-gaap:FairValueByMeasurementFrequency,us-gaap:FinancialInstrument us-gaap:FairValueInputsLevel1,us-gaap:FairValueMeasurementsRecurring,us-gaap:EquitySecurities▄█▅█▄▂▁▂▃3.2133.9783.3754.083.2582.8092.652.7783.053NA2.571NANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency,us-gaap:FinancialInstrument us-gaap:FairValueMeasurementsRecurring,us-gaap:EquitySecurities▄█▅█▄▂▁▂▃3.2133.9783.3754.083.2582.8092.652.7783.053NA2.571NANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:LongTermDebt █▁▁▁▁▁▁▁▁▁▁417.82682.74167.62957.49577.43277.36977.30577.24177.17677.11278.046NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ██▇▇▇█▇▇▇▇▇▆▆▅▅▄▄▃▃▂▂▂▁▁▂▁▁▁▁▂▁0.820.7690.7280.7280.7330.8260.7430.7320.7010.6630.7010.6460.5720.4910.4180.3620.2970.2320.1860.1550.1270.0920.0590.0330.070.0480.0170.0010.0230.0640.045NANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:StockholdersEquity ███▆▆▆▆▆▆▅▅▅▅▄▄▄▄▂▁▁▂▂▂▁▁▁▁▁▁▁▁532.033510.971516.262428.014411.415398.767386.609377.171370.584363.988364.178360.426352.384285.022275.947276.269283.976114.615109.501104.857113.868113.648111.008109.676108.067107.23104.862103.54101.30478.33877.333NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ███▆▆▆▆▆▆▅▅▅▅▄▄▄▄▂▁▁▂▂▂▁▁▁▁▁▁▁▁532.853511.74516.99428.742412.148399.593387.352377.903371.285364.651364.879361.072352.956285.513276.365276.631284.273114.847109.687105.012113.995113.74111.067109.709108.137107.278104.879103.541101.32778.40277.378NANA76.594
us-gaap:AdditionalPaidInCapital ███▆▆▆▆▆▇▇▇▇▇▅▅▅▅▁▁▁▁▁▁▁▁▁▁▁▁▁▁301.778299.903312.733236.534234.963244.063247.79251.631254.564257.47263.835267.396268.601210.817209.7211.073212.17346.89445.2243.05543.09744.75145.69346.68347.74649.67449.61649.30149.14736.48436.243NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ██▇▇▆▆▅▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁216.863203.385199.005186.71173.18154.631144.364133.501122.642112.905102.39192.93583.42475.09668.88862.80156.58453.60151.05948.2745.73642.86239.84337.48834.78432.29130.13829.21726.57515.42314.973NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax █▆▅▅▅▄▂▁▁▂▃▄▄▃▃▄▅▄▄▄▄▄▄▄▄▄▄▄▄▄▄13.2887.5794.4184.6763.178-0.021-5.64-8.057-6.718-6.484-2.146-0.0030.26-0.977-2.7272.3092.9331.8780.981.2920.5951.5951.0311.0641.0960.8230.6660.581.141.9971.683NANANA
us-gaap:MinorityInterest ██▇▇▇█▇▇▇▇▇▆▆▅▅▄▄▃▃▂▂▂▁▁▂▁▁▁▁▂▁0.820.7690.7280.7280.7330.8260.7430.7320.7010.6630.7010.6460.5720.4910.4180.3620.2970.2320.1860.1550.1270.0920.0590.0330.070.0480.0170.0010.0230.0640.045NANANA
us-gaap:StockIssuedDuringPeriodValueNewIssues ▅█▆▆▅▆▅▃▃▂▂▃▃▂▂▂▂▂▂▃▂▁▂▇▁▁0.1190.2150.1430.1660.1350.1480.1150.0590.0570.0510.0540.0610.0620.0520.0390.0350.0310.0350.0520.0680.0350.0190.0290.1960.0130.016NANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▆▇▆▇▅▆▆▅▆▆▅▃▂▃▂▂▂▂▂▂▂▃▁▁▁▁▁▁▁1.6571.2991.3951.1441.3911.1081.2881.2991.0941.221.1930.9520.5350.3840.4850.3550.3560.4120.2950.3140.3030.290.50.1530.1520.1540.2290.1380.1440.198NANANA0.069
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▁▂▃▃█0.050.0770.0870.0870.188NA0.0760.0490.051-0.099NANANANANANANANANANANANANANANANA-0.0010.0NANANANANA-0.1
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁▃█▆▁▂▂▇▃▁▂▄8.02512.16521.63217.3918.81710.29710.43620.53511.9628.05610.76114.531NANANANANANANANANA1.440.7145.7645.422-0.864.8093.8085.4266.137-0.0030.77910.074.096
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▄█▆█▇▇▇▇▇▆▆-201.919-97.19913.853-56.4263.933-24.51-8.777-25.725-27.238-15.332-33.943-36.258NANANANANANANANANA2.301-45.006-14.723-29.452-1.77829.06610.05933.7053.566-6.302-25.693-36.59-18.293
us-gaap:NetCashProvidedByUsedInFinancingActivities █▄▃▃▃▂▄▃▁▅▄▃774.618144.9352.60528.084-12.591-80.55286.71262.276-313.67285.35882.0126.188NANANANANANANANANA-12.60545.78-9.409-46.36511.64363.603-0.513-30.569-64.12260.75612.97824.646-36.57
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▃▂▂▂▁▃▃580.72459.90138.09-10.9510.159-94.76588.37157.086NANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁▃█▆▁▂▂▇▃▁▂▄8.02512.16521.63217.3918.81710.29710.43620.53511.9628.05610.76114.531NANANANANANANANANA1.440.7145.7645.422-0.864.8093.8085.4266.137-0.0030.77910.074.096
us-gaap:NetIncomeLoss ▆▅▆▆█▅▅▅▅▅▄▄▄▃▃▃▂▂▂▂▂▂▂▂▂▂▁▂▅▁▁▁▁▁13.47810.55512.29513.5318.54910.26710.86310.8599.7379.5779.1039.5128.3286.2086.0876.4643.2572.6542.8192.5942.9353.082.4162.7652.5542.2140.9822.94711.4570.7550.9370.9650.6320.502
us-gaap:ProfitLoss ▆▅▆▆█▅▅▅▅▅▄▅▄▃▃▃▂▂▂▂▂▂▂▂▂▂▁▂▅▁▁▁▁▁13.57910.67312.38213.61218.64410.3510.9510.9399.8269.6389.1589.5868.4096.2816.1436.5293.3222.72.852.6222.973.1132.4422.7882.5762.2450.9972.92511.4760.7740.9550.9780.6450.515
us-gaap:ShareBasedCompensation █▆▇▆▇▆▆▆▆▆▆▅▃▂▃▂▂▃▂▂▂▂▃▁▁▁▂▁▁▂▁▁▁▁1.6571.2991.3951.1441.3911.1081.2881.2991.0941.221.1930.9520.5350.3840.4850.3550.3560.4120.2950.3140.3030.290.50.1530.1520.1540.2290.1380.1440.1980.1350.1350.1720.069
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▄█▆█▇▇▇▇▇▆▆-201.919-97.19913.853-56.4263.933-24.51-8.777-25.725-27.238-15.332-33.943-36.258NANANANANANANANANA2.301-45.006-14.723-29.452-1.77829.06610.05933.7053.566-6.302-25.693-36.59-18.293
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities █▄▃▃▃▂▄▃▁▅▄▃774.618144.9352.60528.084-12.591-80.55286.71262.276-313.67285.35882.0126.188NANANANANANANANANA-12.60545.78-9.409-46.36511.64363.603-0.513-30.569-64.12260.75612.97824.646-36.57
us-gaap:ProceedsFromIssuanceOfLongTermDebt █▁347.84120.0NANA0.00.00.0NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▂▂█▃▁▁▁▁▁▁▂▁12.865.067.04420.0640.0650.0640.0640.0630.0641.0625.0620.19NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▁█0.00415.197NANA13.115.682NANANANANANANANANANANANANANANANANANANANANA0.0NANANA0.515NANA
  2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31

None

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1010109.3870969.3513599.4559559.5247779.604169.669359.7267839.8491679.8261979.8900888.6414488.5962418.632248.6485034.2630664.1910674.0108354.02014.0832014.1244394.1472454.196674.2993114.3034074.2806584.2797453.4943283.479888
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:PreferredStockSharesIssued

us-gaap:PreferredStockSharesIssued


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value00000000012200.012200.012200.012200.024400.024400.024400.024400.024400.024400.024400.024400.024400.024400.024400.0
Percentage of PreferredStockSharesIssued0.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value1010109.3634079.327429.4308519.4952659.5766449.6428349.6989979.8182479.7987249.8626158.6047638.5532928.5824258.5986884.2039084.1543773.957523.9667854.0205044.0582084.0978014.1472264.2404844.2410444.2285354.2276223.4327833.425413
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value10109.696859.6923789.7583519.9499.96985410109.9916258.9584258.9697357.6291754.4564424.3979064.3662954.3072744.3199754.3320164.2838884.2380094.0084263.4456643.4313213.4631373.494795
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value10109.3479.3749.4619.6339.6390989.7653759.8366469.5157458.5842898.6077197.2572184.181923.9610044.0073684.0313234.1187924.2121744.2428874.2283863.9997323.4323873.4145613.4522093.480355
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value200000.0100000.0100000.0100000.0100000.0100000.0100000.0100000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.291.01.21.451.981.091.141.131.010.980.930.970.880.720.730.720.410.610.690.640.720.750.580.660.590.510.150.622.790.130.190.190.090.06
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1.280.981.161.41.911.051.11.090.980.940.880.910.830.690.70.690.390.570.640.580.660.70.550.630.580.50.150.622.780.130.190.190.090.06
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:AdministrativeService


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2269000.02322000.02190000.02113000.02002000.01810000.01968000.01732000.01738000.01604000.01544000.01500000.01433000.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating6.26.30.06.15.85.50.05.45.75.20.05.15.3
Percentage of InterestAndDividendIncomeOperating us-gaap:AdministrativeService0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CreditAndDebitCard


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1637000.01562000.01683000.01735000.01660000.01420000.01583000.01481000.01358000.01243000.01268000.01225000.01173000.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax72.167.376.882.182.978.580.485.578.177.582.181.781.9
Percentage of InterestAndDividendIncomeOperating4.44.20.05.04.84.30.04.64.44.00.04.24.4
Percentage of InterestAndDividendIncomeOperating us-gaap:CreditAndDebitCard0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DepositAccount


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value813000.01225000.01237000.01223000.01194000.01170000.01208000.01247000.01200000.01190000.01237000.01238000.01121000.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax35.852.856.557.959.664.661.472.069.074.280.182.578.2
Percentage of InterestAndDividendIncomeOperating2.23.30.03.53.53.50.03.93.93.90.04.24.2
Percentage of InterestAndDividendIncomeOperating us-gaap:DepositAccount0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FiduciaryAndTrust


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1510000.01579000.01596000.01594000.01569000.01468000.01583000.01638000.01671000.01606000.01600000.01479000.01485000.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax66.568.072.975.478.481.180.494.696.1100.1103.698.6103.6
Percentage of InterestAndDividendIncomeOperating4.14.30.04.64.54.40.05.15.55.20.05.05.5
Percentage of InterestAndDividendIncomeOperating us-gaap:FiduciaryAndTrust0.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:InterestAndFeeIncomeLoansAndLeases

us-gaap:InterestAndFeeIncomeLoansAndLeases


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value333333313129292827282727242119211611111110111111111111129.8286.7817.3446.8156.536.456
Percentage of InterestAndFeeIncomeLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating91.591.30.090.490.390.40.091.089.092.40.092.891.891.40.092.391.793.10.094.193.594.00.094.694.293.80.095.794.994.70.094.594.193.5

None

us-gaap:InterestExpense

us-gaap:InterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.3955.745.7235.4775.6265.6845.2984.9384.7423.9113.3293.0632.3531.7661.8681.8911.8851.691.8121.8421.8181.7411.7511.731.8331.7531.7091.6341.541.4091.5241.5621.6091.835
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating14.615.50.015.816.317.10.015.515.512.70.010.48.87.70.08.310.313.60.015.515.813.70.013.714.914.90.012.214.919.70.021.723.226.6

None

us-gaap:InterestExpenseLongTermDebt

us-gaap:InterestExpenseLongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value902000.0756000.0856000.0881000.0896000.0907000.0889000.0883000.0869000.0819000.0847000.0699000.0637000.0558000.0
Percentage of InterestExpenseLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating2.42.00.02.52.62.70.02.82.82.70.02.42.42.4

None

us-gaap:InterestIncomeExpenseNet

us-gaap:InterestIncomeExpenseNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value31313029282727262526262624212020161010109.713111010109.9810118.8185.7526.2125.655.3345.069
Percentage of InterestIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating85.484.50.084.283.782.90.084.584.587.30.089.691.292.30.091.789.786.40.084.584.286.30.086.385.185.10.087.885.180.30.078.376.873.4

None

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value6.7976.0775.6525.5915.6255.4665.2434.724.6183.9563.8153.034
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating18.416.40.016.116.316.50.014.815.112.90.010.3

None

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1300000.01300000.01400000.01200000.01100000.01100000.01300000.01100000.01100000.01200000.01200000.01000000.0516000.0384000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating3.53.50.03.53.23.30.03.53.63.90.03.41.91.7

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value181318182113141413121214129.3139.0829.9674.8674.1494.4873.9034.4334.8213.6244.343.2173.4771.4475.346121.1931.6561.4310.8770.658
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating49.237.80.052.562.141.30.044.642.840.80.050.047.840.30.043.726.533.40.032.938.437.80.034.426.129.60.039.8116.116.70.019.812.69.5

None

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4.5763.3215.674.6032.8333.3524.0153.2683.2552.9083.6625.1324.443.0322.9393.4381.5451.4491.6371.2811.4631.7081.1821.5520.6411.2320.452.4210.5470.4190.7010.4530.2320.143
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating12.49.00.013.38.210.10.010.310.79.40.017.416.513.10.015.18.411.70.010.812.713.40.012.35.210.50.018.05.35.90.06.33.32.1

None

us-gaap:ProfitLoss

us-gaap:ProfitLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value13101213181010109.8269.6389.1589.5868.4096.2816.1436.5293.3222.72.852.6222.973.1132.4422.7882.5762.2450.9972.925110.7740.9550.9780.6450.515
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating36.828.80.039.353.931.20.034.332.231.30.032.531.327.20.028.618.121.70.022.125.824.40.022.120.919.10.021.8110.810.80.013.69.37.5

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.1010.1180.0870.0820.0950.0830.0870.080.0890.0610.0550.0740.0810.0730.0560.0650.0650.0460.0310.0280.0350.0330.0260.0230.0220.031
Percentage of ProfitLoss0.71.10.70.60.50.80.80.70.90.60.60.81.01.20.91.02.01.71.11.11.21.11.10.80.91.4
Percentage of InterestAndDividendIncomeOperating0.30.30.00.20.30.30.00.30.30.20.00.30.30.30.00.30.40.40.00.20.30.30.00.20.20.3
Percentage of InterestAndDividendIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value13101213181010109.7379.5779.1039.5118.3286.2086.0876.4643.2572.6542.8192.5942.9353.082.4162.7652.5542.214
Percentage of ProfitLoss99.398.999.399.499.599.299.299.399.199.499.499.299.098.899.199.098.098.398.998.998.898.998.999.299.198.6
Percentage of InterestAndDividendIncomeOperating36.528.50.039.053.731.00.034.131.931.10.032.331.026.90.028.417.721.40.021.925.524.20.021.920.718.9
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value5.7093.161-0.2581.4983.1995.6192.417-1.339-0.234-3.401-1.79-0.2621.2371.75-5.036-0.6241.0550.898-0.3120.697-1.00.564-0.033-0.0320.2730.1570.086-0.56-0.8570.314-0.4460.311-0.0740.202
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating15.58.50.04.39.316.90.0-4.2-0.8-11.00.0-0.94.67.60.0-2.75.77.20.05.9-8.74.40.0-0.32.21.30.0-4.2-8.34.40.04.3-1.12.9

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value5.7093.161-0.2581.4983.1995.6192.417-1.339-0.234-3.401-1.79-0.2631.2371.75-5.036-0.6241.0550.898-0.3120.697-1.00.564-0.033-0.0320.2730.157
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.4100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating15.58.50.04.39.316.90.0-4.2-0.8-11.00.0-0.94.67.60.0-2.75.77.20.05.9-8.74.40.0-0.32.21.3
Percentage of InterestAndDividendIncomeOperating us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value191312152115139.69.5926.2377.3689.3249.6468.0311.1075.9054.3773.5982.5383.3191.973.6772.4092.7562.8492.4021.0832.365101.0880.5091.2890.5710.717
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating52.337.40.043.663.248.20.030.131.420.30.031.735.934.80.025.923.928.90.028.017.128.90.021.823.120.50.017.6102.515.20.017.98.210.4

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value13101213181010109.7379.5779.1039.5128.3286.2086.0876.4643.2572.6542.8192.5942.9353.082.4162.7652.5542.2140.9822.947110.7550.9370.9650.6320.502
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating36.528.50.039.053.731.00.034.131.931.10.032.331.026.90.028.417.721.40.021.925.524.20.021.920.718.90.021.9110.610.50.013.49.17.3

None

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value101000.0118000.087000.082000.095000.083000.087000.080000.089000.061000.055000.074000.081000.073000.056000.065000.065000.046000.031000.028000.035000.033000.026000.023000.022000.031000.015000.0-22000.019000.019000.018000.013000.013000.013000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating0.30.30.00.20.30.30.00.30.30.20.00.30.30.30.00.30.40.40.00.20.30.30.00.20.20.30.0-0.20.20.30.00.20.20.2

None

us-gaap:Assets

us-gaap:Assets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value45413732357731053054304130963000292232232932284528252292230022692256124412141166118512041215116911731217119811341088682745
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

ncbs:AdvantageCommunityBancsharesInc.


None
Period End2020-06-302020-03-31
Value160149
Percentage of Assets3.54.0
Percentage of Assets3.54.0
Percentage of Assets ncbs:AdvantageCommunityBancsharesInc.100.0100.0

ncbs:CommerceFinancialHoldingsInc.


None
Period End2020-03-312019-12-31
Value729713
Percentage of Assets19.519.9
Percentage of Assets19.519.9
Percentage of Assets ncbs:CommerceFinancialHoldingsInc.100.0100.0

None

us-gaap:Liabilities

us-gaap:Liabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value4008322030602676264226412709262225502859256724842472200720241992197211291104106110711090110410591065111010931031987603667
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets88.386.385.586.286.586.987.587.487.388.787.687.387.587.588.087.887.490.891.091.090.490.690.990.690.891.291.390.990.788.589.6

None

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value45413732357731053054304130963000292232232932284528252292230022692256124412141166118512041215116911731217119811341088682745
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5325105164284113983863773703633643603522852752762831141091041131131111091081071041031017877
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.713.714.413.813.513.112.512.612.711.312.412.712.512.412.012.212.69.29.09.09.69.49.19.49.28.88.79.19.311.510.4

None

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value880000.0993000.0936000.0914000.0969000.01053000.01053000.01054000.01100000.01182000.01181000.01173000.01178000.01162000.01163000.01172000.0874000.0249000.0244000.0248000.0260000.0275000.0275000.0284000.0315000.0335000.0335000.0342000.0286000.0148000.0149000.0155000.0168000.0168000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AmortizationOfIntangibleAssets us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302015-06-30
Value753000.0866000.0809000.0788000.0842000.0926000.0926000.0932000.0987000.01070000.01069000.01077000.01082000.01066000.01089000.01100000.0800000.027000.0300000.0300000.0
Percentage of AmortizationOfIntangibleAssets85.687.286.486.286.987.987.988.489.790.590.591.891.991.793.693.991.511.1121.0115.4
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CoreDeposits0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value127000.0127000.0127000.0126000.0127000.0127000.0127000.0122000.0113000.0112000.0112000.0
Percentage of AmortizationOfIntangibleAssets14.412.813.613.813.112.112.111.610.39.59.5
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CustomerLists0.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value59605647494948474646474747444547473029293131313128292929291919
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.61.61.51.61.61.61.61.61.41.61.71.71.92.02.12.12.42.42.62.62.62.62.72.42.42.52.62.72.92.6

None

us-gaap:Goodwill

us-gaap:Goodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-04-292015-12-312014-12-312013-12-312012-12-31
Value1511511511071071071071071071071071071070.066-66.00.80.80.80.8
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.34.14.23.53.53.53.53.63.73.33.73.83.80.00.00.10.10.10.1

None

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value12131414141516171821
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.40.50.50.50.50.60.60.7

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value7.5656.1945.9194.9454.2333.883.4193.1613.14
Percentage of FiniteLivedIntangibleAssetsNet58.745.040.135.328.424.419.016.90.0
Percentage of Assets0.20.20.20.20.10.10.10.10.1
Percentage of Assets ncbs:MortgageServicingRights0.00.00.00.00.00.00.00.00.0

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312014-12-312013-12-312012-12-31
Value9.278101010101112131415161718161718193.04.15.32.2
Percentage of FiniteLivedIntangibleAssetsNet71.972.873.871.472.473.274.275.076.90.078.30.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.20.30.30.30.40.40.40.40.50.50.60.60.70.70.70.80.90.20.30.40.3
Percentage of Assets us-gaap:CoreDeposits0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value3.6183.7453.8723.9994.1254.2524.3794.5064.3384.4514.5634.6754.094
Percentage of FiniteLivedIntangibleAssetsNet28.127.226.228.627.626.825.825.023.10.021.70.00.0
Percentage of Assets0.10.10.10.10.10.10.10.20.10.10.20.20.2
Percentage of Assets us-gaap:CustomerLists0.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value164164165121122123124125126127128129128868789903.793
Percentage of IntangibleAssetsNetIncludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.64.44.63.94.04.14.04.24.33.94.44.64.63.83.83.94.00.3

None

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:EquitySecuritiesFvNi

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3213000.03978000.03375000.04080000.03258000.02809000.02650000.02778000.03053000.02571000.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.1
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring us-gaap:EquitySecurities0.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:EquitySecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3213000.03978000.03375000.04080000.03258000.02809000.02650000.02778000.03053000.02571000.0
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.1
Percentage of Assets us-gaap:FairValueMeasurementsRecurring us-gaap:EquitySecurities0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:LongTermDebt

us-gaap:LongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value41782675777777777777778
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.22.21.91.92.52.52.52.62.62.42.7

us-gaap:LongTermDebt us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType

ncbs:BaylakeCorp, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-312019-12-31
Value121212
Percentage of LongTermDebt3.115.418.8
Percentage of Assets0.30.30.4
Percentage of Assets ncbs:BaylakeCorp us-gaap:JuniorSubordinatedDebt0.00.00.0

ncbs:FirstMenashaBancsharesInc, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-312019-12-31
Value4.5584.5474.536
Percentage of LongTermDebt1.15.56.7
Percentage of Assets0.10.10.1
Percentage of Assets ncbs:FirstMenashaBancsharesInc us-gaap:JuniorSubordinatedDebt0.00.00.0

ncbs:MidWisconsinFinancialServicesInc, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-312019-12-31
Value7.2387.1887.138
Percentage of LongTermDebt1.78.710.6
Percentage of Assets0.20.20.2
Percentage of Assets ncbs:MidWisconsinFinancialServicesInc us-gaap:JuniorSubordinatedDebt0.00.00.0

us-gaap:LongTermDebt us-gaap:LongtermDebtType

ncbs:PaycheckProtectionProgramLiquidityFacility


None
Period End2020-06-302019-12-31
Value3350.0
Percentage of LongTermDebt80.40.0
Percentage of Assets7.40.0
Percentage of Assets ncbs:PaycheckProtectionProgramLiquidityFacility0.00.0

us-gaap:FederalHomeLoanBankAdvances


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3940251535353535353536
Percentage of LongTermDebt9.348.437.126.245.445.545.645.745.846.046.8
Percentage of Assets0.91.10.70.51.11.21.11.21.21.11.2
Percentage of Assets us-gaap:FederalHomeLoanBankAdvances0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-312019-12-312018-06-302018-03-312017-12-31
Value303030292929
Percentage of LongTermDebt7.437.145.238.738.637.9
Percentage of Assets0.70.80.91.00.91.0
Percentage of Assets us-gaap:JuniorSubordinatedDebt0.00.00.00.00.00.0

us-gaap:SubordinatedDebt


None
Period End2020-06-302020-03-312019-12-31
Value121211
Percentage of LongTermDebt2.914.517.7
Percentage of Assets0.30.30.3
Percentage of Assets us-gaap:SubordinatedDebt0.00.00.0

None

us-gaap:MinorityInterest

us-gaap:MinorityInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value820000.0769000.0728000.0728000.0733000.0826000.0743000.0732000.0701000.0663000.0701000.0646000.0572000.0491000.0418000.0362000.0297000.0232000.0186000.0155000.0127000.092000.059000.033000.070000.048000.017000.01000.023000.064000.045000.0
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value5325105164284113983863773703633643603522852752762831141091041131131111091081071041031017877
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.713.714.413.813.513.112.512.612.711.312.412.712.512.412.012.212.69.29.09.09.69.49.19.49.28.88.79.19.311.510.4

None

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-31
Value53251151642841239938737737136436436135228527627628411410910511311311110910810710410310178777676
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.713.714.513.813.513.112.512.612.711.312.412.712.512.512.012.212.69.29.09.09.69.49.19.49.28.88.79.19.311.510.40.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

ncbs:AdvantageCommunityBancsharesInc.


None
Period End2020-06-302020-03-31
Value2120
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest3.93.9
Percentage of Assets0.50.5
Percentage of Assets ncbs:AdvantageCommunityBancsharesInc.13.113.4

ncbs:CommerceFinancialHoldingsInc.


None
Period End2020-03-312019-12-31
Value7166
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest13.912.8
Percentage of Assets1.91.8
Percentage of Assets ncbs:CommerceFinancialHoldingsInc.9.79.3

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-31
Value137.5794.4184.6763.178-0.021-5.64-8.057-6.718-6.484-2.146-0.0030.26-0.977-2.7272.3092.9331.8780.981.2920.5951.5951.0311.0641.0960.8230.6660.581.141.9971.6831.8921.69
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest2.51.50.91.10.8-0.0-1.5-2.1-1.8-1.8-0.6-0.00.1-0.3-1.00.81.01.60.91.20.51.40.91.01.00.80.60.61.12.52.22.52.2
Percentage of Assets0.30.20.10.20.1-0.0-0.2-0.3-0.2-0.2-0.1-0.00.0-0.0-0.10.10.10.20.10.10.10.10.10.10.10.10.10.10.10.30.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-31
Value30129931223623424424725125425726326726821020921121246454343444546474949494936363636
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest56.658.660.555.257.061.164.066.668.670.672.374.176.173.875.976.374.640.841.241.037.839.341.142.644.246.347.347.648.546.546.848.148.2
Percentage of Assets6.68.08.77.67.78.08.08.48.78.09.09.49.59.29.19.39.43.83.73.73.63.73.84.04.14.14.14.34.55.34.90.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-31
Value0.1040.1040.1060.0940.0940.0940.0950.0960.0960.0970.0980.0980.0990.0860.0860.0860.0860.0420.0420.040.040.040.0410.0410.0410.0420.0420.0420.0420.0340.0340.0350.035
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-31
Value0.820.7690.7280.7280.7330.8260.7430.7320.7010.6630.7010.6460.5720.4910.4180.3620.2970.2320.1860.1550.1270.0920.0590.0330.070.0480.0170.0010.0230.0640.0450.1030.19
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.20.20.10.20.20.20.20.20.20.20.20.20.20.20.20.10.10.20.20.10.10.10.10.00.10.00.00.00.00.10.10.10.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-12-31
Value21620319918617315414413312211210292837568625653514845423937343230292615141313
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest40.739.738.543.542.038.737.335.333.031.028.125.723.626.324.922.719.946.746.546.040.137.735.934.232.230.128.728.226.219.719.417.417.3
Percentage of Assets4.85.45.66.05.75.14.74.44.23.53.53.33.03.33.02.82.54.34.24.13.93.63.33.23.02.72.52.62.42.32.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value3012993122362342442472512542572632672682102092112124645434344454647494949493636
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.68.08.77.67.78.08.08.48.78.09.09.49.59.29.19.39.43.83.73.73.63.73.84.04.14.14.14.34.55.34.9

None

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2162031991861731541441331221121029283756862565351484542393734323029261514
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.85.45.66.05.75.14.74.44.23.53.53.33.03.33.02.82.54.34.24.13.93.63.33.23.02.72.52.62.42.32.0

None

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value137.5794.4184.6763.178-0.021-5.64-8.057-6.718-6.484-2.146-0.0030.26-0.977-2.7272.3092.9331.8780.981.2920.5951.5951.0311.0641.0960.8230.6660.581.141.9971.683
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.20.10.20.1-0.0-0.2-0.3-0.2-0.2-0.1-0.00.0-0.0-0.10.10.10.20.10.10.10.10.10.10.10.10.10.10.10.30.2

None

us-gaap:MinorityInterest

us-gaap:MinorityInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value820000.0769000.0728000.0728000.0733000.0826000.0743000.0732000.0701000.0663000.0701000.0646000.0572000.0491000.0418000.0362000.0297000.0232000.0186000.0155000.0127000.092000.059000.033000.070000.048000.017000.01000.023000.064000.045000.0
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value119000.0215000.0143000.0166000.0135000.0148000.0115000.059000.057000.051000.054000.061000.062000.052000.039000.035000.031000.035000.052000.068000.035000.019000.029000.0196000.013000.016000.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value119000.0215000.0143000.0166000.0135000.0148000.0115000.059000.057000.051000.054000.061000.062000.052000.039000.035000.030000.035000.052000.068000.035000.019000.029000.0196000.013000.016000.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.096.8100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-03-31
Value1657000.01299000.01395000.01144000.01391000.01108000.01288000.01299000.01094000.01220000.01193000.0952000.0535000.0384000.0485000.0355000.0356000.0412000.0295000.0314000.0303000.0290000.0500000.0153000.0152000.0154000.0229000.0138000.0144000.0198000.069000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-03-31
Value1657000.01299000.01395000.01144000.01391000.01108000.01288000.01299000.01094000.01220000.01193000.0952000.0535000.0384000.0485000.0355000.0356000.0412000.0295000.0314000.0303000.0290000.0500000.0153000.0152000.0154000.0229000.0138000.0144000.0198000.069000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312013-12-312013-09-302012-03-31
Value50000.077000.087000.087000.0188000.076000.049000.051000.0-99000.0-1000.00-100000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312013-12-312013-09-302012-03-31
Value50000.077000.087000.087000.0188000.076000.049000.051000.0-99000.0-1000.00100000.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0-100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value8.0251221178.817101020118.05610141.440.7145.7645.422-0.864.8093.8085.4266.137-0.0030.779104.096
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating21.832.90.050.225.531.10.064.439.226.20.049.311.30.045.744.0-7.30.028.352.485.70.010.8145.059.3

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-201.919-97.19913-56.4263.933-24.51-8.777-25.725-27.238-15.332-33.943-36.2582.301-45.006-14.723-29.452-1.7782910333.566-6.302-25.693-36.59-18.293
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-547.3-262.70.0-162.811.4-73.90.0-80.7-89.2-49.80.0-123.118.10.0-116.6-238.9-15.20.074.9325.449.80.0-356.3-527.0-265.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7741442.60528-12.591-80.5528662-313.67285826.188-12.60545-9.409-46.3651163-0.513-30.569-64.122601224-36.57
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating2099.7391.70.081.0-36.4-242.90.0195.3-1026.9926.90.021.0-98.90.0-74.5-376.199.20.0-3.8-295.1-895.40.0180.0355.0-529.7

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5805938-10.9510.159-94.7658857
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating1574.1161.90.0-31.60.5-285.80.0179.1

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value8.0251221178.817101020118.05610141.440.7145.7645.422-0.864.8093.8085.4266.137-0.0030.779104.096
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating21.832.90.050.225.531.10.064.439.226.20.049.311.30.045.744.0-7.30.028.352.485.70.010.8145.059.3

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value13101213181010109.7379.5779.1039.5128.3286.2086.0876.4643.2572.6542.8192.5942.9353.082.4162.7652.5542.2140.9822.947110.7550.9370.9650.6320.502
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating36.528.50.039.053.731.00.034.131.931.10.032.331.026.90.028.417.721.40.021.925.524.20.021.920.718.90.021.9110.610.50.013.49.17.3

None

us-gaap:ProfitLoss

us-gaap:ProfitLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value13101213181010109.8269.6389.1589.5868.4096.2816.1436.5293.3222.72.852.6222.973.1132.4422.7882.5762.2450.9972.925110.7740.9550.9780.6450.515
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating36.828.80.039.353.931.20.034.332.231.30.032.531.327.20.028.618.121.70.022.125.824.40.022.120.919.10.021.8110.810.80.013.69.37.5

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.1010.1180.0870.0820.0950.0830.0870.080.0890.0610.0550.0740.0810.0730.0560.0650.0650.0460.0310.0280.0350.0330.0260.0230.0220.031
Percentage of ProfitLoss0.71.10.70.60.50.80.80.70.90.60.60.81.01.20.91.02.01.71.11.11.21.11.10.80.91.4
Percentage of InterestAndDividendIncomeOperating0.30.30.00.20.30.30.00.30.30.20.00.30.30.30.00.30.40.40.00.20.30.30.00.20.20.3
Percentage of InterestAndDividendIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value13101213181010109.7379.5779.1039.5118.3286.2086.0876.4643.2572.6542.8192.5942.9353.082.4162.7652.5542.214
Percentage of ProfitLoss99.398.999.399.499.599.299.299.399.199.499.499.299.098.899.199.098.098.398.998.998.898.998.999.299.198.6
Percentage of InterestAndDividendIncomeOperating36.528.50.039.053.731.00.034.131.931.10.032.331.026.90.028.417.721.40.021.925.524.20.021.920.718.9
Percentage of InterestAndDividendIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1657000.01299000.01395000.01144000.01391000.01108000.01288000.01299000.01094000.01220000.01193000.0952000.0535000.0384000.0485000.0355000.0356000.0412000.0295000.0314000.0303000.0290000.0500000.0153000.0152000.0154000.0229000.0138000.0144000.0198000.0135000.0135000.0172000.069000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-201.919-97.19913-56.4263.933-24.51-8.777-25.725-27.238-15.332-33.943-36.2582.301-45.006-14.723-29.452-1.7782910333.566-6.302-25.693-36.59-18.293
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating-547.3-262.70.0-162.811.4-73.90.0-80.7-89.2-49.80.0-123.118.10.0-116.6-238.9-15.20.074.9325.449.80.0-356.3-527.0-265.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7741442.60528-12.591-80.5528662-313.67285826.188-12.60545-9.409-46.3651163-0.513-30.569-64.122601224-36.57
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestAndDividendIncomeOperating2099.7391.70.081.0-36.4-242.90.0195.3-1026.9926.90.021.0-98.90.0-74.5-376.199.20.0-3.8-295.1-895.40.0180.0355.0-529.7

None

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


None
Period End2020-06-302020-03-312019-06-302019-03-312018-12-312017-12-31
Value347200.00.00.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.00.00.00.00.0

None

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value125.067200.0650.0640.0640.0630.0641.0625.0620.19
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


None
Period End2020-06-302020-03-312019-06-302019-03-312013-09-302012-09-30
Value0.00415135.6820.00.515
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.00.0100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption, ncbs:StockIncentivePlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value1439700.01444500.01443700.01407800.01455700.01546100.01581700.01589900.01605600.01630000.01643300.0922030.0746000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption, ncbs:StockIncentivePlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value50.1650.0648.7543.2542.6541.240.7740.5740.3940.1239.8224.3921.56
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value8222411821431541542491611044331549611112983
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets

ncbs:IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3761000.05567000.0-2069000.0-1575000.04847000.01748000.0-4286000.01729000.02238000.0985000.05599000.01490000.0-2106000.0377000.0
Percentage of IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:IncreaseDecreaseInCertificatesOfDepositInOtherBanks

ncbs:IncreaseDecreaseInCertificatesOfDepositInOtherBanks


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-31
Value-995000.0-501000.0-1000.04404000.0-1000.0-252000.0-1000.0-498000.0-491000.0-250000.0-749000.0
Percentage of IncreaseDecreaseInCertificatesOfDepositInOtherBanks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:IncreaseDecreaseInInterestPayableAndOtherLiabilities

ncbs:IncreaseDecreaseInInterestPayableAndOtherLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-10131000.0-2257000.0300000.0-6175000.0-2714000.0-421000.06556000.0-5744000.0-1159000.0105000.03110000.0-3573000.0936000.0904000.0
Percentage of IncreaseDecreaseInInterestPayableAndOtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:NetBookValueOfMsrAssetToLoansServicedForOthers us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ncbs:NetBookValueOfMsrAssetToLoansServicedForOthers

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00030.00680.00010.00050.00010.00630.00010.0001-0.00010.0061
Percentage of NetBookValueOfMsrAssetToLoansServicedForOthers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:OccupancyEquipmentAndOfficeExpense

ncbs:OccupancyEquipmentAndOfficeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.3614.2043.8273.4543.7573.753.6733.663.4543.7873.6953.5593.2232.831
Percentage of OccupancyEquipmentAndOfficeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:PercentageOfAllowanceForLoanLosses

ncbs:PercentageOfAllowanceForLoanLosses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value01.00001.00001.0
Percentage of PercentageOfAllowanceForLoanLosses0.0100.00.00.00.0100.00.00.00.0100.0

ncbs:PercentageOfAllowanceForLoanLosses us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value00.04
Percentage of PercentageOfAllowanceForLoanLosses0.04.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.050.4-0.0300.0280.392-0.004-0.0020.0050.402
Percentage of PercentageOfAllowanceForLoanLosses0.040.00.00.00.039.20.00.00.040.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.010.170.02-0.01-0.0050.215-0.0030.0050.0090.205
Percentage of PercentageOfAllowanceForLoanLosses0.017.00.00.00.021.50.00.00.020.5

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.010.0200-0.0090.0390.0010-0.0010.039
Percentage of PercentageOfAllowanceForLoanLosses0.02.00.00.00.03.90.00.00.03.9

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.010.1600-0.0060.1160.009-0.005-0.0110.119
Percentage of PercentageOfAllowanceForLoanLosses0.016.00.00.00.011.60.00.00.011.9

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00.020.0100.0030.01700-0.0010.017
Percentage of PercentageOfAllowanceForLoanLosses0.02.00.00.00.01.70.00.00.01.7

ncbs:PercentageOfAllowanceForLoanLosses us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.020.1300-0.0020.122-0.0020.001-0.0020.128
Percentage of PercentageOfAllowanceForLoanLosses0.013.00.00.00.012.20.00.00.012.8

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00.04000.0030.0370-0.001-0.0010.038
Percentage of PercentageOfAllowanceForLoanLosses0.04.00.00.00.03.70.00.00.03.8

ncbs:PercentageOfAllowanceForLoanLosses us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00.020000.02-0.0010.0030.0020.019
Percentage of PercentageOfAllowanceForLoanLosses0.02.00.00.00.02.00.00.00.01.9

ncbs:ServicingAssetAtAmortizedValueCapitalization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ncbs:ServicingAssetAtAmortizedValueCapitalization

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-31
Value1691000.0559000.0
Percentage of ServicingAssetAtAmortizedValueCapitalization100.0100.0

us-gaap:AmortizationOfMortgageServicingRightsMSRs us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:AmortizationOfMortgageServicingRightsMSRs

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value320000.0284000.0255000.0224000.0199000.0188000.0177000.0163000.0151000.0150000.0
Percentage of AmortizationOfMortgageServicingRightsMSRs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BankOwnedLifeInsuranceIncome

us-gaap:BankOwnedLifeInsuranceIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value540000.0703000.0535000.0495000.0880000.0459000.0489000.01019000.0468000.0442000.0464000.0459000.0454000.0401000.0404000.0318000.0312000.0250000.0247000.0252000.0255000.0242000.0249000.0250000.0220000.0214000.0220000.0224000.0212000.0169000.0187000.0186000.0183000.0153000.0
Percentage of BankOwnedLifeInsuranceIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessDevelopment

us-gaap:BusinessDevelopment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2514000.01359000.01397000.01428000.01579000.01281000.01185000.01334000.01463000.01342000.01341000.01113000.01317000.0929000.01135000.0985000.0790000.0578000.0660000.0549000.0550000.0485000.0647000.0548000.0537000.0535000.0877000.0573000.0473000.0425000.0515000.0437000.0352000.0345000.0
Percentage of BusinessDevelopment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

ncbs:BaylakeCorp, us-gaap:JuniorSubordinatedDebt, us-gaap:LondonInterbankOfferedRateLIBOR


None
Period End2020-03-31
Value0.0135
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

ncbs:FirstMenashaBancsharesInc, us-gaap:JuniorSubordinatedDebt, us-gaap:LondonInterbankOfferedRateLIBOR


None
Period End2020-03-31
Value0.0279
Percentage of DebtInstrumentBasisSpreadOnVariableRate1206.7

ncbs:MidWisconsinFinancialServicesInc, us-gaap:JuniorSubordinatedDebt, us-gaap:LondonInterbankOfferedRateLIBOR


None
Period End2020-03-31
Value0.0143
Percentage of DebtInstrumentBasisSpreadOnVariableRate1105.9

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain

us-gaap:DebtSecuritiesAvailableForSaleRealizedGain


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value164000.000019000.0133000.0000001222000.0
Percentage of DebtSecuritiesAvailableForSaleRealizedGain100.00.00.00.0100.0100.00.00.00.00.00.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedGainLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value164000.00-54000.0019000.013000.0-212000.000001222000.0
Percentage of DebtSecuritiesAvailableForSaleRealizedGainLoss100.00.0100.00.0100.0100.0100.00.00.00.00.0100.0

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss

us-gaap:DebtSecuritiesAvailableForSaleRealizedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0054000.000120000.0212000.000014000.0-14000.0
Percentage of DebtSecuritiesAvailableForSaleRealizedLoss0.00.0100.00.00.0100.0100.00.00.00.0100.0100.0

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2798000.02156000.02051000.02066000.02086000.01108000.01639000.01522000.01380000.01741000.029000.03361000.02079000.01598000.0905000.01061000.02668000.0498000.0239000.0863000.01142000.01078000.01055000.0997000.0967000.0829000.0262000.01164000.01349000.0636000.0592000.0592000.0626000.0607000.0
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:AvailableforsaleSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00-11320000.05073000.014000.0573000.0-14000.0-1216000.013000.0556000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales0.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FeesAndCommissionsMortgageBankingAndServicing

us-gaap:FeesAndCommissionsMortgageBankingAndServicing


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value9.9632.3274.9163.72.0591.2031.8341.9021.5281.081.3391.7741.4060.842
Percentage of FeesAndCommissionsMortgageBankingAndServicing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery

us-gaap:FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value72000.055000.099000.0-17000.0
Percentage of FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-31
Value67000.0-30000.0
Percentage of FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery93.1-54.5

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value020000.0
Percentage of FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery0.036.4

us-gaap:FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value-3000.0-1000.0
Percentage of FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery-4.2-1.8

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value-12000.0-3000.0
Percentage of FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery-16.7-5.5

us-gaap:FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value20000.069000.0
Percentage of FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery27.8125.5

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value51000.038000.0123000.027000.0
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value3000.01000.0
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery5.92.6

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value12000.03000.0
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery23.57.9

us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value6000.04000.0
Percentage of FinancingReceivableAllowanceForCreditLossesRecovery11.810.5

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value123000.093000.0222000.010000.0
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-31
Value97000.00
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs78.90.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value020000.0
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs0.021.5

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value26000.073000.0
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs21.178.5

us-gaap:FinancingReceivableModificationsNumberOfContracts2

us-gaap:FinancingReceivableModificationsNumberOfContracts2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302015-12-312014-12-31
Value1.04.00-1.0-4.010.0-1.00-2.07.01.02.0-2.01.0
Percentage of FinancingReceivableModificationsNumberOfContracts2100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsPostModificationRecordedInvestment2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value01100000.0-100000.0-200000.0-2500000.03900000.0-100000.0-200000.0-1200000.02100000.0
Percentage of FinancingReceivableModificationsPostModificationRecordedInvestment20.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2

us-gaap:FinancingReceivableModificationsPreModificationRecordedInvestment2


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312015-03-312014-12-312014-09-302014-06-302014-03-31
Value300000.01400000.00-700000.0-2400000.04500000.000-700000.03400000.0676000.0700000.0003900000.0
Percentage of FinancingReceivableModificationsPreModificationRecordedInvestment2100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.00.00.0100.0

us-gaap:FinitelivedIntangibleAssetsAcquired1 us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FinitelivedIntangibleAssetsAcquired1

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.01.70.00.00.00.00.00.00.0
Percentage of FinitelivedIntangibleAssetsAcquired10.00.0100.00.00.00.00.00.00.00.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.00.00.00.00.00.00.290.00.0
Percentage of FinitelivedIntangibleAssetsAcquired10.00.00.00.00.00.00.00.00.00.0

us-gaap:GainLossOnDispositionOfOtherFinancialAssets

us-gaap:GainLossOnDispositionOfOtherFinancialAssets


None
Period End2020-06-302020-03-312019-06-302019-03-31
Value-748000.0-654000.07572000.0172000.0
Percentage of GainLossOnDispositionOfOtherFinancialAssets100.0100.0100.0100.0

us-gaap:GainLossOnSalesOfLoansNet

us-gaap:GainLossOnSalesOfLoansNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value9.23.0174.2023.7962.1441.1021.4731.7911.330.9051.1631.6091.4520.5531.5352.0711.1250.5170.3760.8110.9850.8740.7750.5050.4310.2150.3970.3530.7140.8720.8360.8460.6710.737
Percentage of GainLossOnSalesOfLoansNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainsLossesOnSalesOfAssets

us-gaap:GainsLossesOnSalesOfAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-748000.0-654000.0-133000.0286000.07572000.0172000.0-153000.0146000.0972000.0204000.0-42000.01305000.0772000.0-6000.0-494000.0453000.0100000.0-5000.0684000.091000.0740000.0211000.091000.0140000.0-442000.0750000.0287000.01333000.045000.04000.060000.05000.0237000.0146000.0
Percentage of GainsLossesOnSalesOfAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillAcquiredDuringPeriod

us-gaap:GoodwillAcquiredDuringPeriod


None
Period End2020-03-31
Value0.0
Percentage of GoodwillAcquiredDuringPeriod0.0

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.00.04.455.356.340.01.4964.05.2710.0543.9844.2840.04.01.31.850.460.390.441.60.01.4751.9350.1250.3510.9950.2480.770.225-0.021
Percentage of IncomeTaxesPaid0.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeposits

us-gaap:IncreaseDecreaseInDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value514697847-1.847-75.6529166-309.554294104-23.0268-23.7153539-9.57254446-40.839-19.125480.388-31.1237.547410-1.257-52.895611425-37.399
Percentage of IncreaseDecreaseInDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InformationTechnologyAndDataProcessing

us-gaap:InformationTechnologyAndDataProcessing


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2399000.02563000.02730000.02515000.02350000.02355000.02420000.02375000.02399000.02320000.02287000.02238000.02207000.01983000.01962000.01831000.01421000.01156000.0980000.0864000.0890000.0831000.0833000.0816000.0775000.0754000.0758000.0724000.0572000.0423000.0434000.0444000.0410000.0402000.0
Percentage of InformationTechnologyAndDataProcessing100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndDividendIncomeOperating

us-gaap:InterestAndDividendIncomeOperating


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value36373634343332313030292926232122181212111112121212111213107.1617.7367.2126.9436.904
Percentage of InterestAndDividendIncomeOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDeposits

us-gaap:InterestExpenseDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.4554.9574.8624.5964.734.7774.4084.0553.8683.0892.472.3641.6651.187
Percentage of InterestExpenseDeposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseShortTermBorrowings

us-gaap:InterestExpenseShortTermBorrowings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value38000.027000.05000.00001000.005000.03000.012000.0051000.021000.0-5000.005000.01000.02000.0-1000.02000.04000.03000.07000.011000.06000.01000.01000.01000.01000.01000.0
Percentage of InterestExpenseShortTermBorrowings100.0100.0100.00.00.00.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss

us-gaap:InterestIncomeExpenseAfterProvisionForLoanLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value282830282827262625262625242019201610109.5679.263109.838109.8219.3058.2569.8287.8434.7775.2374.6754.2093.819
Percentage of InterestIncomeExpenseAfterProvisionForLoanLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeSecuritiesTaxExempt

us-gaap:InterestIncomeSecuritiesTaxExempt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value509000.0491000.0501000.0503000.0522000.0549000.0559000.0572000.0577000.0588000.0599000.0604000.0592000.0565000.0540000.0493000.0391000.0262000.0268000.0253000.0264000.0271000.0242000.0208000.0170000.0173000.0190000.0195000.0187000.0173000.0152000.0201000.0205000.0214000.0
Percentage of InterestIncomeSecuritiesTaxExempt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeSecuritiesTaxable

us-gaap:InterestIncomeSecuritiesTaxable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2042000.02072000.02006000.01904000.02041000.01633000.01565000.01564000.01597000.01342000.01306000.01114000.01239000.01069000.0961000.0902000.0762000.0404000.0362000.0339000.0365000.0394000.0394000.0379000.0415000.0418000.0393000.0309000.0278000.0127000.0175000.0149000.0157000.0162000.0
Percentage of InterestIncomeSecuritiesTaxable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value141313121512111212121211109.9339.282108.8845.3485.5275.6375.6685.6915.4275.3665.3845.2955.1685.3335.5553.5593.1553.3253.3933.273
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue

us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value533000.0525000.0535000.0494000.0479000.0459000.0490000.0457000.0468000.0442000.0464000.0
Percentage of LifeInsuranceCorporateOrBankOwnedChangeInValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestExpense

us-gaap:NoninterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value272325222522212322222120201818191710109.8499.7249.802109.5239.4849.58810109.5866.346.345.9296.0095.785
Percentage of NoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestIncome

us-gaap:NoninterestIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value179.5851312189.1869.79710108.8248.621109.0856.7697.8948.5326.373.8784.5594.1854.8944.073.93.6452.883.763.4725.742132.7562.7592.6852.6772.624
Percentage of NoninterestIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoninterestIncomeOther

us-gaap:NoninterestIncomeOther


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value1487000.0521000.01285000.01166000.01624000.01484000.02236000.01181000.0964000.01147000.0-2568000.02032000.02010000.01370000.01796000.01904000.01335000.0635000.0724000.0612000.0530000.0458000.0457000.0459000.0452000.0412000.0389000.0382000.0351000.0187000.0184000.0172000.0176000.0161000.0
Percentage of NoninterestIncomeOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-30
Value164000.00-54000.0019000.013000.0-212000.0000-2440000.01221000.0-2000.01000.037000.040000.0-5000.00630000.000306000.0442000.0-239000.000232000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax100.00.0100.00.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.0100.0100.0100.00.00.0100.0

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2112000.01168000.0-95000.0555000.01183000.02079000.0894000.0-497000.0-86000.0-1257000.0-1143000.0-125000.0746000.01120000.0-3221000.0-397000.0675000.0574000.0-201000.0446000.0-640000.0361000.0-22000.0-19000.0173000.0101000.054000.0-357000.0-549000.0201000.0-21000.0160000.0-39000.0104000.0
Percentage of OtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7.9854.329-0.4072.0534.4017.7113.099-1.836-0.32-4.658-2.9330.8341.9812.87-8.256-0.9841.771.472-0.5181.143-1.010.925-0.055-0.0510.4460.5990.446-0.475-1.6450.515-0.4670.4710.1190.514
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherInterestAndDividendIncome

us-gaap:OtherInterestAndDividendIncome


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value575000.0662000.0672000.0926000.0798000.01009000.0894000.0747000.01178000.0401000.0488000.0407000.0376000.0354000.0421000.0351000.0362000.0193000.0116000.0108000.0119000.0100000.0115000.091000.0128000.0135000.0122000.077000.065000.080000.065000.047000.051000.071000.0
Percentage of OtherInterestAndDividendIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoninterestExpense

us-gaap:OtherNoninterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3177000.01412000.02908000.01662000.01714000.01783000.02763000.01393000.01079000.01246000.01095000.01086000.01260000.01253000.01610000.01250000.02803000.0746000.01051000.0664000.0460000.0571000.01048000.0614000.0533000.0587000.0908000.01190000.01104000.0571000.0849000.0340000.0446000.0322000.0
Percentage of OtherNoninterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale

us-gaap:PaymentsForOriginationOfMortgageLoansHeldForSale


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value30110215813884365563654954695638
Percentage of PaymentsForOriginationOfMortgageLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromLoansAndLeases

us-gaap:PaymentsForProceedsFromLoansAndLeases


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value21332-16.975391221201326113442394412-8.771-17.92511-8.209133.771-3.064205.375103.517-23.062027-7.9727.239293412
Percentage of PaymentsForProceedsFromLoansAndLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromProductiveAssets

us-gaap:PaymentsForProceedsFromProductiveAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1279000.04961000.0863000.0392000.0769000.02368000.01286000.02160000.0414000.0400000.0-940000.01063000.02239000.0-344000.0
Percentage of PaymentsForProceedsFromProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value19743728101918241715
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:PaymentsToAcquireOtherInvestments


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value65000.03673000.0728000.0568000.01310000.063000.0916000.05000.0593000.036000.064000.02365000.0-298000.03660000.046000.039000.09000.09000.037000.015000.09000.0041000.033000.00789000.008000.007000.002000.0
Percentage of PaymentsToAcquireOtherInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.00.0100.00.0100.0

us-gaap:PaymentsToMinorityShareholders

us-gaap:PaymentsToMinorityShareholders


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312013-12-312013-09-302012-12-312012-09-30
Value50000.077000.087000.087000.0188000.0076000.049000.051000.099000.00-1000.00102000.00
Percentage of PaymentsToMinorityShareholders100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.0100.00.0100.00.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value119000.0215000.08293000.0166000.0135000.0148000.01633000.059000.0-370000.0478000.03855000.061000.0-698000.0812000.01799000.035000.0-69000.0135000.01599000.068000.035000.019000.029000.0196000.013000.016000.015000.016000.0
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value22171515121026121511139.4241311128.6358.9455.3824.5323.787.2786.5854.6014.1115.2932.9837.3036.3966.1281.9616.1773.3831.7691.923
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value9.2320.0100.05.1648.0765.280.00.00.00.00.0
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.00.0100.00.0100.0100.0100.00.00.00.00.00.0

us-gaap:ProceedsFromSaleOfLoansHeldForSale

us-gaap:ProceedsFromSaleOfLoansHeldForSale


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value291103169135833757686847587055397590592928396148322420102024474851544148
Percentage of ProceedsFromSaleOfLoansHeldForSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromShortTermDebt

us-gaap:ProceedsFromShortTermDebt


None
Period End2020-03-312019-03-31
Value750.0
Percentage of ProceedsFromShortTermDebt100.00.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value103000.0851000.01200000.02484000.0698000.0262000.0962000.004000.0248000.0812000.01275000.092000.0135000.060000.0181000.0369000.0253000.082000.00298000.0100000.00144000.062000.0266000.0
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0

us-gaap:ProvisionForLoanAndLeaseLosses

us-gaap:ProvisionForLoanAndLeaseLosses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3000000.03000000.0300000.0400000.0300000.0200000.0240000.0340000.0510000.0510000.0450000.0975000.0450000.0450000.0450000.0450000.0450000.0450000.0450000.0450000.0450000.0450000.0675000.0675000.0675000.0675000.02275000.01975000.0975000.0975000.0975000.0975000.01125000.01250000.0
Percentage of ProvisionForLoanAndLeaseLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLossesExpensed

us-gaap:ProvisionForLoanLossesExpensed


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3000000.03000000.0300000.0400000.0300000.0200000.0240000.0340000.0510000.0510000.0450000.0975000.0450000.0450000.0450000.0450000.0450000.0450000.0450000.0450000.0450000.0450000.0675000.0675000.0675000.0675000.02275000.01975000.0975000.0975000.0975000.0975000.01125000.01250000.0
Percentage of ProvisionForLoanLossesExpensed100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLossesExpensed us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value304000.095000.0
Percentage of ProvisionForLoanLossesExpensed10.13.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-31
Value-243000.01253000.0
Percentage of ProvisionForLoanLossesExpensed-8.141.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value756000.0163000.0
Percentage of ProvisionForLoanLossesExpensed25.25.4

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-31
Value243000.082000.0
Percentage of ProvisionForLoanLossesExpensed8.12.7

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value747000.0795000.0
Percentage of ProvisionForLoanLossesExpensed24.926.5

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-31
Value71000.0-50000.0
Percentage of ProvisionForLoanLossesExpensed2.4-1.7

us-gaap:ProvisionForLoanLossesExpensed us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value815000.0533000.0
Percentage of ProvisionForLoanLossesExpensed27.217.8

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value192000.0102000.0
Percentage of ProvisionForLoanLossesExpensed6.43.4

us-gaap:ProvisionForLoanLossesExpensed us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value115000.027000.0
Percentage of ProvisionForLoanLossesExpensed3.80.9

us-gaap:ServicingAssetAtAmortizedValueAdditions us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ServicingAssetAtAmortizedValueAdditions

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value00-1647000.0936000.0552000.0319000.0507000.0421000.0172000.0103000.0
Percentage of ServicingAssetAtAmortizedValueAdditions0.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ServicingAssetAtFairValueAdditions

us-gaap:ServicingAssetAtFairValueAdditions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1691000.0559000.01069000.0936000.0552000.0319000.0507000.0421000.0172000.0103000.0197000.0266000.0228000.0185000.0
Percentage of ServicingAssetAtFairValueAdditions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:EmployeeStockOption, ncbs:StockIncentivePlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value00.25000.2500000.2500
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.0100.00.00.0100.00.00.00.00.0100.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:EmployeeStockOption, ncbs:StockIncentivePlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value00.0167-0.006200.023700.0012000.02480.00010
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate0.0100.0100.00.0100.00.0100.00.00.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:EmployeeStockOption


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value0.11.87.01.93.91.10.40.40.70.75.70.00.61.20.20.80.10.24.8990.0550.0670.1790.1270.0470.00.0190.032
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1028.016671.072684.05387.064681.004217.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod100.0100.0100.0100.0100.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeStockOption, ncbs:StockIncentivePlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0000600.02938.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod0.00.00.00.00.90.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:EmployeeStockOption, ncbs:StockIncentivePlan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value021.832.07019.230-0.240017.60.360
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0100.00.0100.00.0100.00.00.0100.0100.00.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercisedNetOfTaxBenefitExpense

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercisedNetOfTaxBenefitExpense


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value103000.0851000.01200000.02484000.0698000.0262000.0535000.0427000.050000.0476000.0760000.0258000.01275000.0127000.0100000.0937000.060000.0181000.0369000.0253000.082000.00298000.0100000.00144000.062000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercisedNetOfTaxBenefitExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercisedNetOfTaxBenefitExpense us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value103000.0851000.01200000.02482000.0698000.0261000.0535000.0427000.050000.0475000.0760000.0258000.01275000.0127000.0100000.0933000.060000.0181000.0369000.0253000.082000.00298000.0100000.00144000.062000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercisedNetOfTaxBenefitExpense100.0100.0100.099.9100.099.6100.0100.0100.099.8100.0100.0100.0100.0100.099.6100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.004158.7290.939135.6825.5394.5534.5938.0647.3233.6133.9920.0792.1552.7650.2510.030.1030.4842.1731.6211.7721.4942.0940.41
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.004158.7280.939135.6815.5384.5524.5928.0637.3223.6123.9910.0792.1552.7650.250.030.1010.4842.1731.621.7721.4942.0930.41
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.099.6100.098.1100.0100.099.9100.0100.0100.0100.0

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.00.0020.0010.00.0020.0010.0010.0010.0010.0010.0010.0010.00.00.0020.00.00.0010.00.0
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.01.90.00.00.10.00.0

us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisions us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisions

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-31
Value225000.0175000.0
Percentage of ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisions100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-31
Value103000.0285000.0350000.0318000.0297000.0316000.0331.0460000.0572000.0476000.0374000.0362000.0372000.0274000.0437000.0359000.0276000.0201000.0120000.041000.010000.08000.014000.016000.011000.015000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:BusinessAcquisitionAcquireePercentageOfAcquirorsTotalAssets dei:LegalEntity, us-gaap:StatementScenario

ncbs:BusinessAcquisitionAcquireePercentageOfAcquirorsTotalAssets

ncbs:CommerceFinancialHoldingsInc., srt:ProForma


None
Period End2020-03-31
Value0.16
Percentage of BusinessAcquisitionAcquireePercentageOfAcquirorsTotalAssets100.0

ncbs:CertificatesOfDepositFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

ncbs:CertificatesOfDepositFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312016-12-31
Value1719190.9931.2341.7463.992
Percentage of CertificatesOfDepositFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

ncbs:CertificatesOfDepositFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1718195.3955.3960.9920.9930.9951.2471.2481.7463.984
Percentage of CertificatesOfDepositFairValueDisclosure99.994.5100.00.00.00.0100.00.00.0101.1100.099.8

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1719195.395.3780.9920.9930.9951.2311.2341.7463.992
Percentage of CertificatesOfDepositFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0

ncbs:CollateralDependentFinancingReceivableRelatedAllowance

ncbs:CollateralDependentFinancingReceivableRelatedAllowance


None
Period End2020-06-302020-03-31
Value1379000.01744000.0
Percentage of CollateralDependentFinancingReceivableRelatedAllowance100.0100.0

ncbs:CollateralDependentFinancingReceivableRelatedAllowance us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value061000.0
Percentage of CollateralDependentFinancingReceivableRelatedAllowance0.03.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-31
Value1231000.01683000.0
Percentage of CollateralDependentFinancingReceivableRelatedAllowance89.396.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value148000.00
Percentage of CollateralDependentFinancingReceivableRelatedAllowance10.70.0

us-gaap:CommercialPortfolioSegment, ncbs:PaycheckProtectionProgramLoans


None
Period End2020-06-30
Value0
Percentage of CollateralDependentFinancingReceivableRelatedAllowance0.0

ncbs:CollateralDependentFinancingReceivableUnpaidPrincipalBalance

ncbs:CollateralDependentFinancingReceivableUnpaidPrincipalBalance


None
Period End2020-06-302020-03-31
Value9.15511
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance100.0100.0

ncbs:CollateralDependentFinancingReceivableUnpaidPrincipalBalance us-gaap:Collateral

ncbs:OtherBusinessAssets


None
Period End2020-06-302020-03-31
Value4.5236.465
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance49.454.8

us-gaap:RealEstate


None
Period End2020-06-302020-03-31
Value4.6325.341
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance50.645.2

ncbs:CollateralDependentFinancingReceivableUnpaidPrincipalBalance us-gaap:Collateral, us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:OtherBusinessAssets, us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value0.8350.921
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance9.17.8

ncbs:OtherBusinessAssets, us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-31
Value3.6885.544
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance40.347.0

ncbs:OtherBusinessAssets, us-gaap:CommercialPortfolioSegment, ncbs:PaycheckProtectionProgramLoans


None
Period End2020-06-30
Value0.0
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance0.0

us-gaap:RealEstate, us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value0.60.611
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance6.65.2

us-gaap:RealEstate, us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value2.5243.168
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance27.626.8

us-gaap:RealEstate, us-gaap:CommercialPortfolioSegment, ncbs:PaycheckProtectionProgramLoans


None
Period End2020-06-30
Value0.0
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance0.0

us-gaap:RealEstate, us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value0.9751.029
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance10.68.7

ncbs:CollateralDependentFinancingReceivableUnpaidPrincipalBalance us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value1.4351.532
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance15.713.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-31
Value3.6885.544
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance40.347.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value2.5243.168
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance27.626.8

us-gaap:CommercialPortfolioSegment, ncbs:PaycheckProtectionProgramLoans


None
Period End2020-06-30
Value0.0
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance0.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value0.9751.029
Percentage of CollateralDependentFinancingReceivableUnpaidPrincipalBalance10.68.7

ncbs:CollateralDependentFinancingReceivableWithNoRelatedAllowance

ncbs:CollateralDependentFinancingReceivableWithNoRelatedAllowance


None
Period End2020-06-302020-03-31
Value3282000.06371000.0
Percentage of CollateralDependentFinancingReceivableWithNoRelatedAllowance100.0100.0

ncbs:CollateralDependentFinancingReceivableWithNoRelatedAllowance us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value1435000.0663000.0
Percentage of CollateralDependentFinancingReceivableWithNoRelatedAllowance43.710.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-31
Value0978000.0
Percentage of CollateralDependentFinancingReceivableWithNoRelatedAllowance0.015.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value339000.03168000.0
Percentage of CollateralDependentFinancingReceivableWithNoRelatedAllowance10.349.7

us-gaap:CommercialPortfolioSegment, ncbs:PaycheckProtectionProgramLoans


None
Period End2020-06-30
Value0
Percentage of CollateralDependentFinancingReceivableWithNoRelatedAllowance0.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value975000.01029000.0
Percentage of CollateralDependentFinancingReceivableWithNoRelatedAllowance29.716.2

ncbs:CollateralDependentFinancingReceivableWithRelatedAllowance

ncbs:CollateralDependentFinancingReceivableWithRelatedAllowance


None
Period End2020-06-302020-03-31
Value5873000.05435000.0
Percentage of CollateralDependentFinancingReceivableWithRelatedAllowance100.0100.0

ncbs:CollateralDependentFinancingReceivableWithRelatedAllowance us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value0869000.0
Percentage of CollateralDependentFinancingReceivableWithRelatedAllowance0.016.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-31
Value3688000.04566000.0
Percentage of CollateralDependentFinancingReceivableWithRelatedAllowance62.884.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value2185000.00
Percentage of CollateralDependentFinancingReceivableWithRelatedAllowance37.20.0

us-gaap:CommercialPortfolioSegment, ncbs:PaycheckProtectionProgramLoans


None
Period End2020-06-30
Value0
Percentage of CollateralDependentFinancingReceivableWithRelatedAllowance0.0

ncbs:FinancingReceivablePercentNonaccrual

ncbs:FinancingReceivablePercentNonaccrual


None
Period End2020-06-302020-03-312019-12-31
Value0.0040.0060.005
Percentage of FinancingReceivablePercentNonaccrual100.0100.0100.0

ncbs:FinancingReceivableRecordedInvestmentCurrentPercentageOfLoan

ncbs:FinancingReceivableRecordedInvestmentCurrentPercentageOfLoan


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value0.9950.9920.9920.9960.9960.9940.9970.9950.9940.9930.9930.986
Percentage of FinancingReceivableRecordedInvestmentCurrentPercentageOfLoan100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:FinancingReceivableRevolvingConvertedToTermLoan

ncbs:FinancingReceivableRevolvingConvertedToTermLoan


None
Period End2020-06-302020-03-31
Value1669000.03973000.0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan100.0100.0

ncbs:FinancingReceivableRevolvingConvertedToTermLoan us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-03-31
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

ncbs:FinancingReceivableRevolvingConvertedToTermLoan us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-03-31
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-03-31
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention


None
Period End2020-03-31
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Substandard


None
Period End2020-03-31
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, ncbs:Watch


None
Period End2020-06-30
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Pass


None
Period End2020-06-30
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:SpecialMention


None
Period End2020-06-30
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Substandard


None
Period End2020-06-30
Value0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.0

ncbs:FinancingReceivableRevolvingConvertedToTermLoan us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value01000.0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.00.0

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value1669000.03861000.0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan100.097.2

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value0111000.0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.02.8

ncbs:FinancingReceivableRevolvingConvertedToTermLoan us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value01000.0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan0.00.0

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value1669000.03972000.0
Percentage of FinancingReceivableRevolvingConvertedToTermLoan100.0100.0

ncbs:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearSix us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ncbs:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearSix

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value1961000.01454000.01324000.0975000.0763000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearSix100.0100.0100.0100.0100.0

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value391000.0391000.0552000.0552000.0552000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearSix19.926.941.756.672.3

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value970000.0970000.01419000.01419000.01419000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearSix49.566.7107.2145.5186.0

ncbs:FiniteLivedIntangibleAssetsAmortizationExpenseYearSix us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ncbs:FiniteLivedIntangibleAssetsAmortizationExpenseYearSix

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value658000.0541000.0400000.0324000.0276000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearSix100.0100.0100.0100.0100.0

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-31
Value573000.0573000.0841000.0841000.0841000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearSix87.1105.9210.2259.6304.7

ncbs:LongTermDebtPercentageBearingFixedInterestRatePercentage

ncbs:LongTermDebtPercentageBearingFixedInterestRatePercentage


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.70.640.580.690.690.69
Percentage of LongTermDebtPercentageBearingFixedInterestRatePercentage100.0100.0100.0100.0100.0100.0

ncbs:LongtermDebtPercentageBearingVariableInterestRatePercentage

ncbs:LongtermDebtPercentageBearingVariableInterestRatePercentage


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.30.360.420.310.310.31
Percentage of LongtermDebtPercentageBearingVariableInterestRatePercentage100.0100.0100.0100.0100.0100.0

ncbs:MsrAsset us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

ncbs:MsrAsset

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312016-12-31
Value8979000.08807000.08420000.06347000.04039000.04097000.02013000.0
Percentage of MsrAsset100.0100.0100.0100.0100.0100.0100.0

ncbs:MsrAsset us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value7165000.06019000.05919000.04945000.04233000.03880000.03749000.03419000.03161000.03140000.03187000.01922000.0
Percentage of MsrAsset79.868.370.30.00.00.059.10.00.077.777.895.5

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value8979000.08807000.08420000.06960000.06506000.06471000.06347000.04304000.04414000.04039000.04097000.02013000.0
Percentage of MsrAsset100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0

ncbs:OtherInvestmentFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

ncbs:OtherInvestmentFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312016-12-31
Value3.2133.9783.3752.652.5460.00.0
Percentage of OtherInvestmentFairValueDisclosure100.0100.0100.0100.0100.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312016-12-31
Value19191613131315
Percentage of OtherInvestmentFairValueDisclosure600.7484.2496.6497.7517.60.00.0

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312016-12-31
Value3.8633.9383.9382.1581.7081.6951.72
Percentage of OtherInvestmentFairValueDisclosure120.299.0116.781.467.10.00.0

ncbs:OtherInvestmentFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value262724201918171717171417
Percentage of OtherInvestmentFairValueDisclosure820.9683.2713.20.00.00.0679.10.00.0684.60.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value262724201918171717171417
Percentage of OtherInvestmentFairValueDisclosure820.9683.2713.20.00.00.0679.10.00.0684.60.00.0

ncbs:PercentageOfAllowanceForCreditLossesToLoans

ncbs:PercentageOfAllowanceForCreditLossesToLoans


None
Period End2020-06-302020-03-312019-12-31
Value0.01030.010.0054
Percentage of PercentageOfAllowanceForCreditLossesToLoans100.0100.0100.0

ncbs:PercentageOfLoansByPastDueStatus us-gaap:InternalCreditAssessment

ncbs:PercentageOfLoansByPastDueStatus

ncbs:Watch


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.0270.0230.0250.0220.0240.030.0270.0320.0350.0310.028
Percentage of PercentageOfLoansByPastDueStatus100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Pass


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.9520.9540.9550.9580.9560.9480.9510.9510.9480.9470.948
Percentage of PercentageOfLoansByPastDueStatus3525.94147.83820.04354.53983.33160.03522.22971.92708.63054.83385.7

us-gaap:SpecialMention


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.0060.0040.0060.0040.0050.0040.0090.0060.0050.010.011
Percentage of PercentageOfLoansByPastDueStatus22.217.424.018.220.813.333.318.814.332.339.3

us-gaap:Substandard


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.0150.0190.0140.0160.0150.0180.0130.0110.0120.0120.013
Percentage of PercentageOfLoansByPastDueStatus55.682.656.072.762.560.048.134.434.338.746.4

ncbs:PercentageOfNonAccrualLoan us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:PercentageOfNonAccrualLoan

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-312019-12-31
Value0.140.120.14
Percentage of PercentageOfNonAccrualLoan100.0100.0100.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value0.350.410.440.250.350.440.520.570.5620.5520.460.018
Percentage of PercentageOfNonAccrualLoan250.0341.7314.30.00.00.00.00.00.00.00.00.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value0.250.260.230.250.320.320.120.0460.0540.0640.0410.143
Percentage of PercentageOfNonAccrualLoan178.6216.7164.30.00.00.00.00.00.00.00.00.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value0.040.040000.010.010.0080000.059
Percentage of PercentageOfNonAccrualLoan28.633.30.00.00.00.00.00.00.00.00.00.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.080.070.080.120.020.040.040.1360.1370.1810.346
Percentage of PercentageOfNonAccrualLoan57.158.357.10.00.00.00.00.00.00.00.0

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value00000.060.0400.0030.010.0090.0060.013
Percentage of PercentageOfNonAccrualLoan0.00.00.00.00.00.00.00.00.00.00.00.0

ncbs:PercentageOfNonAccrualLoan us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value0.090.060.080.090.10.10.230.1940.190.1610.1210.147
Percentage of PercentageOfNonAccrualLoan64.350.057.10.00.00.00.00.00.00.00.00.0

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value0.050.040.030.060.040.030.050.0260.0250.0180.0120.003
Percentage of PercentageOfNonAccrualLoan35.733.321.40.00.00.00.00.00.00.00.00.0

ncbs:PercentageOfTotalDebtSecuritiesAvailableForSale us-gaap:FinancialInstrument

ncbs:PercentageOfTotalDebtSecuritiesAvailableForSale

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302019-12-31
Value0.160.18
Percentage of PercentageOfTotalDebtSecuritiesAvailableForSale100.0100.0

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302019-12-31
Value0.390.43
Percentage of PercentageOfTotalDebtSecuritiesAvailableForSale243.8238.9

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-06-302019-12-31
Value0.120.04
Percentage of PercentageOfTotalDebtSecuritiesAvailableForSale75.022.2

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302019-12-31
Value0.330.35
Percentage of PercentageOfTotalDebtSecuritiesAvailableForSale206.2194.4

ncbs:PercentageOfTotalNotesReceivableGross us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:PercentageOfTotalNotesReceivableGross

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-312019-12-31
Value0.030.030.04
Percentage of PercentageOfTotalNotesReceivableGross100.0100.0100.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-312019-12-31
Value0.260.320.31
Percentage of PercentageOfTotalNotesReceivableGross866.71066.7775.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-312019-12-31
Value0.170.190.19
Percentage of PercentageOfTotalNotesReceivableGross566.7633.3475.0

us-gaap:CommercialPortfolioSegment, ncbs:PaycheckProtectionProgramLoans


None
Period End2020-06-302019-12-31
Value0.120
Percentage of PercentageOfTotalNotesReceivableGross400.00.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-312019-12-31
Value0.160.170.17
Percentage of PercentageOfTotalNotesReceivableGross533.3566.7425.0

ncbs:PercentageOfTotalNotesReceivableGross us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-312019-12-31
Value0.150.170.17
Percentage of PercentageOfTotalNotesReceivableGross500.0566.7425.0

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-312019-12-31
Value0.040.050.05
Percentage of PercentageOfTotalNotesReceivableGross133.3166.7125.0

ncbs:ResidentialMortgageLoansServicedForOthers us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ncbs:ResidentialMortgageLoansServicedForOthers

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1010890847721663620603560527515518295
Percentage of ResidentialMortgageLoansServicedForOthers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:ServicingAssetAtAmortizedCostBeforeValuationAllowance us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ncbs:ServicingAssetAtAmortizedCostBeforeValuationAllowance

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value7565000.06194000.05919000.03749000.0
Percentage of ServicingAssetAtAmortizedCostBeforeValuationAllowance100.0100.0100.0100.0

ncbs:TimeDepositInOtherBanks

ncbs:TimeDepositInOtherBanks


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value1718195.3955.3960.9920.9930.9951.2471.2481.7463.984
Percentage of TimeDepositInOtherBanks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ncbs:TrustPreferredSecuritiesQualifyAsTier1Capital

ncbs:TrustPreferredSecuritiesQualifyAsTier1Capital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value292929292929282823
Percentage of TrustPreferredSecuritiesQualifyAsTier1Capital100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, ncbs:CollateralDependentLoans


None
Period End2020-06-302020-03-31
Value7.77610
Percentage of AssetsFairValueDisclosure100.0100.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, ncbs:MsrAsset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value8.9798.8078.426.966.5066.4716.3474.3044.4144.097
Percentage of AssetsFairValueDisclosure115.587.50.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, ncbs:OtherRealEstateOwned


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1.01.01.01.3250.30.420.421.2811.231.294
Percentage of AssetsFairValueDisclosure12.99.90.00.00.00.00.00.00.00.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementsNonrecurring, ncbs:CollateralDependentLoans


None
Period End2020-06-302020-03-31
Value7.77610
Percentage of AssetsFairValueDisclosure100.0100.0

us-gaap:FairValueMeasurementsNonrecurring, ncbs:MsrAsset


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value8.9798.8078.426.966.5066.4716.3474.3044.4144.097
Percentage of AssetsFairValueDisclosure115.587.50.00.00.00.00.00.00.00.0

us-gaap:FairValueMeasurementsNonrecurring, ncbs:OtherRealEstateOwned


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value1.01.01.01.3250.30.420.421.2811.231.294
Percentage of AssetsFairValueDisclosure12.99.90.00.00.00.00.00.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value18106.9677.4735.7333.1230.470.3862.073
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value5.5292.5163.4223.4082.6291.5980.0660.2140.449
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax30.422.949.145.645.951.214.055.421.7

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value8.0876.4992.4923.2672.5071.2770.3280.1060.16
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax44.459.335.843.743.740.969.827.57.7

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value0.3380.2880.0040.00.00.00.00.00.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax1.92.60.10.00.00.00.00.00.0

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value4.2611.6611.0490.7980.5970.2480.0760.0660.18
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax23.415.115.110.710.47.916.217.18.7

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value0.0120.5820.9141.0671.383.1528.1979.5885.013
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value0.00.220.00.010.0170.1021.0930.830.039
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.037.80.00.91.23.213.38.70.8

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value0.010.1210.6970.6520.7721.4873.0344.2762.333
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax83.320.876.361.155.947.237.044.646.5

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value0.00.2160.060.2070.2050.2080.8180.6360.377
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.037.16.619.414.96.610.06.67.5

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value0.0020.0250.1570.1980.3861.3553.2523.8462.264
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax16.74.317.218.628.043.039.740.145.2

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value492501443412399407407421411408
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value787878798484876636
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis15.815.617.619.321.220.821.416.18.9

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value188203193169150147134140147157
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis38.340.643.641.037.636.232.933.335.938.6

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value636416161616222626
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis12.912.83.74.04.24.15.56.66.5

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value162155155147147158163170186
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis32.931.035.135.637.038.940.141.545.6

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value510511449419403407400410401405
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value0.00.00.00.02.571
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.00.6

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value507508446391393
Percentage of AvailableForSaleSecuritiesDebtSecurities99.499.499.397.997.1

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value3.133.133.138.499.151
Percentage of AvailableForSaleSecuritiesDebtSecurities0.60.60.72.12.3

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value507508446416396399391
Percentage of AvailableForSaleSecuritiesDebtSecurities99.499.499.399.398.098.197.9

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3.133.133.132.837.9037.9178.49
Percentage of AvailableForSaleSecuritiesDebtSecurities0.60.60.70.72.01.92.1

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value80777880797877
Percentage of AvailableForSaleSecuritiesDebtSecurities15.715.117.419.219.719.219.5

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value196209195171151147131
Percentage of AvailableForSaleSecuritiesDebtSecurities38.541.043.441.037.636.232.9

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value63641616161621
Percentage of AvailableForSaleSecuritiesDebtSecurities12.512.63.73.94.14.05.4

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value166157156147148157160
Percentage of AvailableForSaleSecuritiesDebtSecurities32.630.734.835.236.738.640.1

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3.133.133.132.837.8387.8518.424
Percentage of AvailableForSaleSecuritiesDebtSecurities0.60.60.70.71.91.92.1

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.00.00.00.0650.0660.066
Percentage of AvailableForSaleSecuritiesDebtSecurities0.00.00.00.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value510511449419403407400405
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value510511449419403407400405
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value510511449419403407400
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value83808183878686
Percentage of AvailableForSaleSecuritiesDebtSecurities16.415.718.119.821.621.221.6

us-gaap:FairValueMeasurementsRecurring, us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value196209195171151147131
Percentage of AvailableForSaleSecuritiesDebtSecurities38.541.043.441.037.636.232.9

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value63641616161621
Percentage of AvailableForSaleSecuritiesDebtSecurities12.512.63.73.94.14.05.4

us-gaap:FairValueMeasurementsRecurring, us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value166157156147148157160
Percentage of AvailableForSaleSecuritiesDebtSecurities32.630.734.835.236.738.640.1

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value838081838786866536
Percentage of AvailableForSaleSecuritiesDebtSecurities16.415.718.119.821.621.221.616.39.1

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value196209195171151147131135143155
Percentage of AvailableForSaleSecuritiesDebtSecurities38.541.043.441.037.636.232.933.135.638.4

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value636416161616212626
Percentage of AvailableForSaleSecuritiesDebtSecurities12.512.63.73.94.14.05.46.66.5

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value166157156147148157160166184
Percentage of AvailableForSaleSecuritiesDebtSecurities32.630.734.835.236.738.640.141.545.4

us-gaap:BankOwnedLifeInsurance

us-gaap:BankOwnedLifeInsurance


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value78787871696666656564646363545453332828282727272726242323231818
Percentage of BankOwnedLifeInsurance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312017-09-302017-06-302016-12-31
Value82224118224943315496111129
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value822241182143154154249161104433154961114412983
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0100.00.0100.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value822241182143154154249161104433154961114412983
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0100.00.0100.00.0

us-gaap:CashAndDueFromBanks

us-gaap:CashAndDueFromBanks


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value665375887551856062518664594168636228119.52722132330212426137.5113.18926
Percentage of CashAndDueFromBanks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashSurrenderValueFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:CashSurrenderValueFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value78787866
Percentage of CashSurrenderValueFairValueDisclosure100.0100.0100.0100.0

us-gaap:CashSurrenderValueFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value78787866
Percentage of CashSurrenderValueFairValueDisclosure100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value78787866
Percentage of CashSurrenderValueFairValueDisclosure100.0100.0100.0100.0

us-gaap:CommonStockValueOutstanding

us-gaap:CommonStockValueOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value104000.0104000.0106000.094000.094000.094000.095000.096000.096000.097000.098000.098000.099000.086000.086000.086000.086000.042000.042000.040000.040000.040000.041000.041000.041000.042000.042000.042000.042000.034000.034000.0
Percentage of CommonStockValueOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateEffectivePercentage

ncbs:BaylakeCorp, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-312019-12-31
Value0.01660.02720.0331
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0

ncbs:FirstMenashaBancsharesInc, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-312019-12-31
Value0.03090.03630.0469
Percentage of DebtInstrumentInterestRateEffectivePercentage186.1133.5141.7

ncbs:MidWisconsinFinancialServicesInc, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-312019-12-31
Value0.01740.02170.0332
Percentage of DebtInstrumentInterestRateEffectivePercentage104.879.8100.3

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscount

ncbs:BaylakeCorp, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-31
Value3765000.03824000.0
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0

ncbs:FirstMenashaBancsharesInc, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-31
Value597000.0608000.0
Percentage of DebtInstrumentUnamortizedDiscount15.915.9

ncbs:MidWisconsinFinancialServicesInc, us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-31
Value3072000.03122000.0
Percentage of DebtInstrumentUnamortizedDiscount81.681.6

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:LongtermDebtType

us-gaap:JuniorSubordinatedDebt


None
Period End2020-06-302020-03-31
Value7434000.07554000.0
Percentage of DebtInstrumentUnamortizedDiscount197.5197.5

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.762286565147219251
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.00.02.0415.9999.757
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger0.00.00.01.42.73.9

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.762174740648289
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger100.062.271.762.143.537.535.5

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value101116161621
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger37.816.825.111.37.58.6

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.07.6058.3764114130
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger0.00.011.512.843.852.352.1

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value9000.0305000.0535000.0792000.01353000.03128000.07290000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value00017000.0102000.0416000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.00.00.01.33.35.7

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value9000.089000.0452000.0525000.0747000.01471000.02902000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss100.029.284.566.355.247.039.8

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value216000.058000.0207000.0205000.0208000.0818000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss70.810.826.115.26.611.2

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0025000.060000.0384000.01347000.03154000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss0.00.04.77.628.443.143.3

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.211387384151488
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value160.02.0440.00.051
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months43.80.02.40.00.058.4

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1.3299.2614938131020
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months60.124.267.945.587.370.023.3

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.01.0350.00.00.00.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months0.01.40.00.00.00.0

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.8821222441.9174.42816
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months39.932.130.752.012.730.018.3

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3000.0277000.0379000.0275000.027000.024000.0907000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value220000.0010000.000677000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss79.40.03.60.00.074.6

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1000.032000.0245000.0127000.025000.016000.0132000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss33.311.664.646.292.666.714.6

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value02000.00000
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss0.00.50.00.00.00.0

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2000.025000.0132000.0138000.02000.08000.098000.0
Percentage of DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss66.79.034.850.27.433.310.8

us-gaap:DebtSecuritiesAvailableForSaleRestricted

us-gaap:DebtSecuritiesAvailableForSaleRestricted


None
Period End2020-06-302019-12-31
Value156166
Percentage of DebtSecuritiesAvailableForSaleRestricted100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.97367139150162233339
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value160.02.0442.0415.99961
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition25.00.01.41.32.618.1

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.0912796797792109
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition70.340.469.752.847.639.532.3

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value101216161621
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition16.28.711.010.27.06.4

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.88212305266119147
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPosition29.718.321.634.940.950.943.3

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.0120.5820.9141.0671.383.1528.197
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.220.00.010.0170.1021.093
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss37.80.00.91.23.213.3

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.010.1210.6970.6520.7721.4873.034
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss83.320.876.361.155.947.237.0

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.2160.060.2070.2050.2080.818
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss37.16.619.414.96.610.0

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.0020.0250.1570.1980.3861.3553.252
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss16.74.317.218.628.043.039.7

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value25.091.0212.0293.0351.0536.0680.0
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value9.001.01.03.033.0
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions9.90.00.30.30.64.9

us-gaap:MortgageBackedSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value23.050.0150.0150.0166.0190.0204.0
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions92.054.970.851.247.335.430.0

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


None
Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.06.03.03.03.03.0
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions2.22.81.00.90.60.4

us-gaap:USStatesAndPoliticalSubdivisions


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.030.056.0139.0181.0340.0440.0
Percentage of DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions8.033.026.447.451.663.464.7

us-gaap:Deposits

us-gaap:Deposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value35373023295425842536253826142522245527652471236623891946196919341894108110561012999104010591011101110421034960908563616
Percentage of Deposits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Deposits dei:LegalEntity

ncbs:AdvantageCommunityBancsharesInc.


None
Period End2020-06-302020-03-31
Value135126
Percentage of Deposits3.84.2

ncbs:CommerceFinancialHoldingsInc.


None
Period End2020-03-312019-12-31
Value620610
Percentage of Deposits20.520.6

us-gaap:DepositsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:DepositsFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312017-09-302017-06-302016-12-31
Value354530292956261427632469236623891969
Percentage of DepositsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepositsFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value3537302329542584253625382614252224552765247123662389194619691056
Percentage of DepositsFairValueDisclosure99.899.899.90.00.00.0100.00.00.0100.1100.1100.0100.00.0100.00.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value3545302929562584253725392614252324562763246923662389194519691057
Percentage of DepositsFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0100.00.0100.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:AvailableforsaleSecurities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value3130000.03130000.03130000.02830000.07903000.07917000.08490000.08504000.08582000.08595000.09151000.09108000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd us-gaap:LongtermDebtType

us-gaap:FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd

us-gaap:FederalHomeLoanBankAdvances


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value0.00930.01110.01570.01950.01720.01720.01720.01720.01720.01720.01710.01170.0083
Percentage of FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses

us-gaap:FinancingReceivableAllowanceForCreditLosses


None
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value292613131313
Percentage of FinancingReceivableAllowanceForCreditLosses100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLosses us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value1.3391.0350.5790.422
Percentage of FinancingReceivableAllowanceForCreditLosses4.64.04.13.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value10105.4715.271
Percentage of FinancingReceivableAllowanceForCreditLosses35.040.139.240.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value5.1784.4223.012.847
Percentage of FinancingReceivableAllowanceForCreditLosses17.816.921.521.6

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value0.790.5470.4140.51
Percentage of FinancingReceivableAllowanceForCreditLosses2.72.13.03.9

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value5.0924.3451.61.47
Percentage of FinancingReceivableAllowanceForCreditLosses17.516.611.511.2

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value0.5130.4420.3680.211
Percentage of FinancingReceivableAllowanceForCreditLosses1.81.72.61.6

us-gaap:FinancingReceivableAllowanceForCreditLosses us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value4.3073.4891.6691.646
Percentage of FinancingReceivableAllowanceForCreditLosses14.813.311.912.5

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value1.1770.9730.5170.472
Percentage of FinancingReceivableAllowanceForCreditLosses4.03.73.73.6

us-gaap:FinancingReceivableAllowanceForCreditLosses us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-312019-12-312018-12-31
Value0.5310.4360.3440.304
Percentage of FinancingReceivableAllowanceForCreditLosses1.81.72.52.3

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear


None
Period End2020-06-302020-03-31
Value602641
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear100.0100.0

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value4036
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear6.75.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-03-31
Value74
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear11.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value67
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear11.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value180190
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear29.929.7

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-31
Value1010
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear1.71.7

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value167177
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear27.827.7

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-31
Value0.1330.135
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.00.0

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, ncbs:Watch


None
Period End2020-06-302020-03-31
Value4.7724.064
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.80.6

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value2926
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear4.94.2

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value5.8245.893
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear1.00.9

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-03-31
Value2.83
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-03-31
Value64
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear10.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention


None
Period End2020-03-31
Value0.037
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Substandard


None
Period End2020-03-31
Value7.393
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear1.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, ncbs:Watch


None
Period End2020-06-30
Value2.777
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Pass


None
Period End2020-06-30
Value58
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear9.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:SpecialMention


None
Period End2020-06-30
Value0.035
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Substandard


None
Period End2020-06-30
Value6.057
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear1.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, ncbs:Watch


None
Period End2020-06-302020-03-31
Value7.0866.676
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear1.21.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value164175
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear27.427.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:SpecialMention


None
Period End2020-06-302020-03-31
Value0.7340.056
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.10.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value7.5538.426
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear1.31.3

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value9.2829.827
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear1.51.5

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value0.9070.915
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.20.1

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, ncbs:Watch


None
Period End2020-06-302020-03-31
Value6.3966.629
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear1.11.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value158168
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear26.326.2

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value2.7442.807
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.50.4

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value0.1330.135
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.00.0

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:Watch, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value1.6891.153
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.30.2

us-gaap:ResidentialPortfolioSegment, ncbs:Watch, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value0.0330.034
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.00.0

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value128142
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear21.322.3

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value3.2033.844
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.50.6

us-gaap:ResidentialPortfolioSegment, us-gaap:SpecialMention, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.00.002
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.00.0

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value1.2281.693
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.20.3

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value0.3390.355
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.10.1

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value131145
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear21.822.7

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value3.5754.233
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.60.7

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value1.5221.156
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.30.2

us-gaap:FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

ncbs:RetailAndOtherFinancingReceivables, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value1.5221.156
Percentage of FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear0.30.2

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear


None
Period End2020-06-302020-03-31
Value185206
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear100.0100.0

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value4.5216.475
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear2.43.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-03-31
Value34
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear16.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value30
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear16.6

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value5152
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear27.525.5

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-31
Value2.2612.683
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear1.21.3

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value4145
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear22.122.0

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-31
Value0.0190.029
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.00.0

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.6890.71
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.40.3

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value2.243.998
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear1.21.9

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value1.21.375
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.60.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-03-31
Value1.479
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-03-31
Value31
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear15.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention


None
Period End2020-03-31
Value0.001
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Substandard


None
Period End2020-03-31
Value1.372
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, ncbs:Watch


None
Period End2020-06-30
Value1.524
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Pass


None
Period End2020-06-30
Value28
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear15.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:SpecialMention


None
Period End2020-06-30
Value0.001
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Substandard


None
Period End2020-06-30
Value0.545
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.3790.396
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.20.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value4950
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear26.424.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value1.7761.797
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear1.00.9

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value2.2612.683
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear1.21.3

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.3880.394
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.20.2

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value3944
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear21.421.4

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:SpecialMention


None
Period End2020-06-302020-03-31
Value0.6540.656
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.40.3

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value0.1440.146
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.10.1

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value0.0190.029
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.00.0

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:Watch, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.760.697
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.40.3

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value5260
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear28.329.5

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value1.7532.021
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.91.0

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.0650.066
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.00.0

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value5361
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear28.729.9

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value1.7532.021
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.91.0

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value0.9410.827
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.50.4

us-gaap:FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

ncbs:RetailAndOtherFinancingReceivables, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value0.9410.827
Percentage of FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear0.50.4

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear


None
Period End2020-06-302020-03-31
Value589139
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear100.0100.0

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value8.7864.321
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear1.53.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-03-31
Value45
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear32.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value399
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear67.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value3621
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear6.115.3

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-31
Value257.276
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear4.45.2

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value4229
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear7.321.0

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-31
Value143.495
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear2.52.5

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.020.0
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.00.0

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value8.7664.321
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear1.53.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-03-31
Value0.039
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-03-31
Value45
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear32.6

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention


None
Period End2020-03-31
Value0.0
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Substandard


None
Period End2020-03-31
Value0.113
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, ncbs:Watch


None
Period End2020-06-30
Value0.229
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Pass


None
Period End2020-06-30
Value397
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear67.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:SpecialMention


None
Period End2020-06-30
Value0.051
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Substandard


None
Period End2020-06-30
Value1.732
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value3621
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear6.115.3

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value257.276
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear4.45.2

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value4229
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear7.321.0

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value143.495
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear2.52.5

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value5424
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear9.217.8

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value2.470.927
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.40.7

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value5424
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear9.217.8

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value2.470.927
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.40.7

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value5.092.438
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.91.7

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

ncbs:RetailAndOtherFinancingReceivables, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value5.092.438
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.91.7

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear


None
Period End2020-06-302020-03-31
Value469492
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear100.0100.0

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value5.8597.982
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear1.21.6

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-03-31
Value156
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear31.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value156
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear33.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value6869
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear14.614.1

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-31
Value4147
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear8.99.6

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value7672
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear16.414.8

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-31
Value3444
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear7.49.1

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.3750.0
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.10.0

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value5.4847.982
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear1.21.6

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-03-31
Value3.47
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-03-31
Value151
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear30.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention


None
Period End2020-03-31
Value0.023
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Substandard


None
Period End2020-03-31
Value2.078
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, ncbs:Watch


None
Period End2020-06-30
Value5.398
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear1.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Pass


None
Period End2020-06-30
Value150
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear32.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:SpecialMention


None
Period End2020-06-30
Value0.023
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Substandard


None
Period End2020-06-30
Value1.215
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.5740.576
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.10.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value6768
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear14.413.9

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value0.3370.168
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.10.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value4046
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear8.69.5

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:SpecialMention


None
Period End2020-06-302020-03-31
Value1.10.0
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.20.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value0.00.149
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.00.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value7672
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear16.314.8

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:SpecialMention


None
Period End2020-06-302020-03-31
Value0.1040.105
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.00.0

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.3140.542
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.10.1

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value3444
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear7.49.0

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:Watch, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.8251.215
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.20.2

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value7179
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear15.316.1

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value5.2617.017
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear1.11.4

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.6560.778
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.10.2

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value7381
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear15.616.5

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value5.2617.017
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear1.11.4

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value6.2055.605
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear1.31.1

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

ncbs:RetailAndOtherFinancingReceivables, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value6.2055.605
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear1.31.1

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear


None
Period End2020-06-302020-03-31
Value292304
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear100.0100.0

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value1011
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear3.73.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-03-31
Value79
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear26.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value76
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear26.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value7376
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear25.125.1

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-31
Value3.4873.764
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear1.21.2

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value7172
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear24.423.8

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-31
Value0.4070.522
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.10.2

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.5730.179
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.20.1

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value9.69710
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear3.33.5

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:SpecialMention


None
Period End2020-06-302020-03-31
Value0.3280.329
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.10.1

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value0.1150.117
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.00.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-03-31
Value0.576
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-03-31
Value77
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear25.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention


None
Period End2020-03-31
Value0.004
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Substandard


None
Period End2020-03-31
Value1.404
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, ncbs:Watch


None
Period End2020-06-30
Value0.625
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Pass


None
Period End2020-06-30
Value68
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear23.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:SpecialMention


None
Period End2020-06-30
Value5.698
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear1.9

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Substandard


None
Period End2020-06-30
Value1.382
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, ncbs:Watch


None
Period End2020-06-302020-03-31
Value6.5727.882
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear2.22.6

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value6264
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear21.521.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:SpecialMention


None
Period End2020-06-302020-03-31
Value1.7361.749
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.60.6

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value2.1892.197
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.70.7

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value3.4423.719
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear1.21.2

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, ncbs:Watch


None
Period End2020-06-302020-03-31
Value1.3070.0
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.40.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value6971
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear23.623.5

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:SpecialMention


None
Period End2020-06-302020-03-31
Value0.9130.915
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.30.3

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value0.3510.466
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.10.2

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:Watch, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.2580.309
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.10.1

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value5356
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear18.118.7

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value1.6421.856
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.60.6

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.0190.02
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.00.0

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value0.0280.03
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.00.0

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value5357
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear18.218.8

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value1.671.886
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.60.6

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value1.8691.161
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.60.4

us-gaap:FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

ncbs:RetailAndOtherFinancingReceivables, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value1.8691.161
Percentage of FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear0.60.4

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear


None
Period End2020-06-302020-03-31
Value334362
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear100.0100.0

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value7.3367.7
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear2.22.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-03-31
Value127
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear35.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value119
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear35.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value8486
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear25.224.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-31
Value2222
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear6.66.3

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value4145
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear12.512.4

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-31
Value1.4593.922
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.41.1

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.0360.038
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.00.0

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value7.2667.604
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear2.22.1

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value0.0340.058
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.00.0

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-03-31
Value7.446
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear2.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-03-31
Value118
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear32.6

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention


None
Period End2020-03-31
Value0.823
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Substandard


None
Period End2020-03-31
Value1.115
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, ncbs:Watch


None
Period End2020-06-30
Value7.778
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear2.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Pass


None
Period End2020-06-30
Value109
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear32.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:SpecialMention


None
Period End2020-06-30
Value0.796
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Substandard


None
Period End2020-06-30
Value1.112
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, ncbs:Watch


None
Period End2020-06-302020-03-31
Value1.6461.706
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.50.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value8284
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear24.623.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value0.2810.285
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.10.1

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value1920
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear5.85.6

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.1060.055
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.00.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value4145
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear12.412.4

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value1.4593.922
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.41.1

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:Watch, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value1.3310.296
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.40.1

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value4959
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear14.816.4

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value4.7995.941
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear1.41.6

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.1970.198
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.10.1

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value5160
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear15.316.6

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value4.7995.941
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear1.41.6

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value2.4032.658
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.70.7

us-gaap:FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

ncbs:RetailAndOtherFinancingReceivables, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value2.4032.658
Percentage of FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear0.70.7

us-gaap:FinancingReceivablePercentPastDue1 us-gaap:FinancingReceivablesPeriodPastDue

us-gaap:FinancingReceivablePercentPastDue1

ncbs:FinancialAsset30To89DaysPastDue


None
Period End2020-06-302020-03-312019-12-31
Value0.0010.0020.003
Percentage of FinancingReceivablePercentPastDue1100.0100.0100.0

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value0.0040.0060.0050.0040.0030.0040.0020.0040.0050.0060.0060.0070.013
Percentage of FinancingReceivablePercentPastDue1400.0300.0166.70.00.00.00.00.00.00.00.00.00.0

us-gaap:FinancingReceivableRecordedInvestmentCurrent

us-gaap:FinancingReceivableRecordedInvestmentCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value28082586255222322193217721592132211620862072203419911603154715321535873
Percentage of FinancingReceivableRecordedInvestmentCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus

us-gaap:FinancingReceivableRecordedInvestmentNonaccrualStatus


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-312013-09-30
Value1114149.2387.658.7325.471101011131416132021243.5339.0
Percentage of FinancingReceivableRecordedInvestmentNonaccrualStatus100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRevolving

us-gaap:FinancingReceivableRevolving


None
Period End2020-06-302020-03-31
Value345456
Percentage of FinancingReceivableRevolving100.0100.0

us-gaap:FinancingReceivableRevolving us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-31
Value2121
Percentage of FinancingReceivableRevolving6.24.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-03-31
Value312
Percentage of FinancingReceivableRevolving68.4

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value208
Percentage of FinancingReceivableRevolving60.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-31
Value1.9872.828
Percentage of FinancingReceivableRevolving0.60.6

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-31
Value1.7991.678
Percentage of FinancingReceivableRevolving0.50.4

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-31
Value6.3486.238
Percentage of FinancingReceivableRevolving1.81.4

us-gaap:FinancingReceivableRevolving us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.6330.089
Percentage of FinancingReceivableRevolving0.20.0

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value2020
Percentage of FinancingReceivableRevolving6.04.5

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:SpecialMention


None
Period End2020-06-302020-03-31
Value0.00.049
Percentage of FinancingReceivableRevolving0.00.0

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Substandard


None
Period End2020-06-302020-03-31
Value0.0790.811
Percentage of FinancingReceivableRevolving0.00.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-03-31
Value7.845
Percentage of FinancingReceivableRevolving1.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-03-31
Value291
Percentage of FinancingReceivableRevolving63.9

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention


None
Period End2020-03-31
Value4.946
Percentage of FinancingReceivableRevolving1.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Substandard


None
Period End2020-03-31
Value7.39
Percentage of FinancingReceivableRevolving1.6

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, ncbs:Watch


None
Period End2020-06-30
Value16
Percentage of FinancingReceivableRevolving4.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Pass


None
Period End2020-06-30
Value183
Percentage of FinancingReceivableRevolving53.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:SpecialMention


None
Period End2020-06-30
Value4.136
Percentage of FinancingReceivableRevolving1.2

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans, us-gaap:Substandard


None
Period End2020-06-30
Value3.826
Percentage of FinancingReceivableRevolving1.1

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value1.4992.34
Percentage of FinancingReceivableRevolving0.40.5

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value1.7991.678
Percentage of FinancingReceivableRevolving0.50.4

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, ncbs:Watch


None
Period End2020-06-302020-03-31
Value0.0450.0
Percentage of FinancingReceivableRevolving0.00.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value6.3036.238
Percentage of FinancingReceivableRevolving1.81.4

us-gaap:FinancingReceivableRevolving us-gaap:FinancingReceivablePortfolioSegment, us-gaap:InternalCreditAssessment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.9191.538
Percentage of FinancingReceivableRevolving0.30.3

us-gaap:ResidentialPortfolioSegment, us-gaap:Pass, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value9295
Percentage of FinancingReceivableRevolving26.920.8

us-gaap:ResidentialPortfolioSegment, us-gaap:Substandard, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value0.2020.075
Percentage of FinancingReceivableRevolving0.10.0

us-gaap:FinancingReceivableRevolving us-gaap:FinancingReceivablePortfolioSegment, us-gaap:LienCategory

us-gaap:ResidentialPortfolioSegment, ncbs:FirstLien


None
Period End2020-06-302020-03-31
Value0.9191.538
Percentage of FinancingReceivableRevolving0.30.3

us-gaap:ResidentialPortfolioSegment, us-gaap:JuniorLien


None
Period End2020-06-302020-03-31
Value9395
Percentage of FinancingReceivableRevolving26.920.8

us-gaap:FinancingReceivableRevolving us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

ncbs:RetailAndOtherFinancingReceivables


None
Period End2020-06-302020-03-31
Value1115
Percentage of FinancingReceivableRevolving3.43.4

us-gaap:FinancingReceivableRevolving us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

ncbs:RetailAndOtherFinancingReceivables, us-gaap:Pass


None
Period End2020-06-302020-03-31
Value1115
Percentage of FinancingReceivableRevolving3.43.4

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value212019191817161514131211109.318.2447.1786.1045.055
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value1.9051.7781.6511.5241.3981.2711.1441.0170.8950.7820.670.5580.269
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization8.98.68.38.07.77.37.06.56.15.75.34.93.3

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value653000.0829000.0224000.0395000.0548000.0161000.0299000.0434000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value1374000.02127000.0781000.01569000.02411000.0926000.01858000.02845000.01070000.02146000.02739000.01066000.02140000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear210.4256.6348.7397.2440.0575.2621.4655.50.00.00.00.00.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value253000.0380000.0127000.0253000.0380000.0127000.0224000.0337000.0112000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear38.745.856.764.169.378.974.977.60.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value658000.0541000.0503000.0658000.0520000.0451000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0100.0100.0100.0100.0100.0

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1010000.01010000.01010000.01273000.01273000.01273000.01273000.01735000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive153.5186.7200.8193.5244.8282.30.00.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value449000.0449000.0449000.0483000.0483000.0483000.0483000.0449000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive68.283.089.373.492.9107.10.00.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1365000.0962000.0835000.0730000.0623000.0564000.0381000.0342000.0326000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value1490000.01490000.01490000.01735000.01735000.01735000.01735000.01735000.01735000.01735000.02167000.02167000.02167000.01763000.02156000.02156000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour109.2154.9178.4237.7278.5307.60.0455.4507.3532.20.00.00.00.00.00.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value483000.0483000.0483000.0507000.0507000.0507000.0507000.0507000.0449000.0449000.0449000.0449000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour35.450.257.869.581.489.90.0133.1131.3137.70.00.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1131000.0930000.0865000.0730000.0623000.0564000.0381000.0342000.0326000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value1987000.01987000.01987000.02167000.02167000.02167000.02167000.02167000.02167000.02167000.02657000.02657000.02657000.02156000.02762000.02762000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree175.7213.7229.7296.8347.8384.20.0568.8633.6664.70.00.00.00.00.00.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value507000.0507000.0507000.0507000.0507000.0507000.0507000.0507000.0449000.0449000.0449000.0449000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree44.854.558.669.581.489.90.0133.1131.3137.70.00.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

ncbs:MortgageServicingRights


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1139000.0937000.0865000.0879000.0773000.0714000.0814000.0754000.0728000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-30
Value2453000.02453000.02453000.02657000.02657000.02657000.02657000.02657000.02657000.02657000.03337000.03337000.03337000.02762000.03254000.03254000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo215.4261.8283.6302.3343.7372.10.0326.4352.4365.00.00.00.00.00.00.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value507000.0507000.0507000.0507000.0507000.0507000.0507000.0507000.0449000.0449000.0449000.0449000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo44.554.158.657.765.671.00.062.359.561.70.00.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:CoreDeposits


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value30303029292929292929292929252525258.086
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CustomerLists


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-12-31
Value5.5235.5235.5235.5235.5235.5235.5235.5235.2335.2335.2335.2334.363
Percentage of FiniteLivedIntangibleAssetsGross18.018.018.019.019.019.019.019.018.018.018.018.017.2

us-gaap:InterestBearingDepositLiabilities

us-gaap:InterestBearingDepositLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value24492231213518011793184218611857183318651839
Percentage of InterestBearingDepositLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestBearingDepositsInBanks

us-gaap:InterestBearingDepositsInBanks


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value7551881065579102163100403806831512.452603934697024354443366012911935272354
Percentage of InterestBearingDepositsInBanks100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestReceivable us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

us-gaap:InterestReceivable

us-gaap:AvailableforsaleSecurities


None
Period End2020-06-302019-12-31
Value2100000.02200000.0
Percentage of InterestReceivable100.0100.0

us-gaap:FinanceReceivables


None
Period End2020-06-302020-03-312019-12-31
Value9000000.07000000.07000000.0
Percentage of InterestReceivable428.60.0318.2

us-gaap:InterestReceivableAndOtherAssets

us-gaap:InterestReceivableAndOtherAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value46433935354134383737353736333334361717161718181819192123241311
Percentage of InterestReceivableAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LoansHeldForSaleFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:LoansHeldForSaleFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312017-09-302017-06-302016-12-31
Value224.0062.7531.6627.924.757.0896.6816.968
Percentage of LoansHeldForSaleFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LoansHeldForSaleFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value213.9292.706104.6991.8311.6392.5936.0377.884.6666.9636.5683.8186.9134.68
Percentage of LoansHeldForSaleFairValueDisclosure97.698.198.30.00.00.098.60.00.099.598.298.298.30.099.20.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value224.0062.753104.7831.8761.6622.6436.0927.924.757.0896.6813.886.9684.755
Percentage of LoansHeldForSaleFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0100.00.0100.00.0

us-gaap:LoansPayable dei:LegalEntity

us-gaap:LoansPayable

ncbs:AdvantageCommunityBancsharesInc.


None
Period End2020-03-31
Value94
Percentage of LoansPayable100.0

ncbs:CommerceFinancialHoldingsInc.


None
Period End2020-03-31
Value618
Percentage of LoansPayable657.4

us-gaap:LoansReceivableFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:LoansReceivableFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312018-03-312017-12-312017-09-302017-06-302016-12-31
Value287826592593213920822068203020071568
Percentage of LoansReceivableFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LoansReceivableFairValueDisclosure us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value279225812559222921892176215321302115208720752038199716061557866
Percentage of LoansReceivableFairValueDisclosure97.097.198.70.00.00.0100.60.00.0100.3100.3100.499.50.099.30.0

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value287826592593224422002169213921032099208220682030200716241568865
Percentage of LoansReceivableFairValueDisclosure100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0100.00.0100.00.0

us-gaap:LoansReceivableHeldForSaleAmount

us-gaap:LoansReceivableHeldForSaleAmount


None
Period End2020-06-302020-03-312019-12-31
Value213.9292.706
Percentage of LoansReceivableHeldForSaleAmount100.0100.0100.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtFairValue

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value37540253436
Percentage of LongTermDebtFairValue100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312018-12-312017-12-31
Value4242414140
Percentage of LongTermDebtFairValue11.2102.9166.5117.5111.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value417826757777777777778
Percentage of LongTermDebtFairValue111.2202.4269.70.00.00.0221.50.00.0213.8

us-gaap:EstimateOfFairValueFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value417826656767675767677
Percentage of LongTermDebtFairValue111.2202.9266.50.00.00.0217.50.00.0211.0

us-gaap:NoninterestBearingDepositLiabilities

us-gaap:NoninterestBearingDepositLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1087791819782743696753664621899631
Percentage of NoninterestBearingDepositLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesReceivableGross

us-gaap:NotesReceivableGross


None
Period End2020-06-302020-03-312019-12-31
Value282126072573
Percentage of NotesReceivableGross100.0100.0100.0

us-gaap:NotesReceivableGross us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural


None
Period End2020-06-302020-03-312019-12-31
Value999595
Percentage of NotesReceivableGross3.53.73.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables


None
Period End2020-06-302020-03-312019-12-31
Value729831806
Percentage of NotesReceivableGross25.831.931.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivablesAndPaycheckProtectionProgramLoans


None
Period End2020-06-30
Value1058
Percentage of NotesReceivableGross37.5

us-gaap:CommercialPortfolioSegment, ncbs:CommercialRealEstateOwnerOccupied


None
Period End2020-06-302020-03-312019-12-31
Value495499496
Percentage of NotesReceivableGross17.619.219.3

us-gaap:CommercialPortfolioSegment, ncbs:PaycheckProtectionProgramLoans


None
Period End2020-06-302019-12-31
Value3290.0
Percentage of NotesReceivableGross11.70.0

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:ConstructionAndLandDevelopment


None
Period End2020-06-302020-03-312019-12-31
Value1079692
Percentage of NotesReceivableGross3.83.73.6

us-gaap:CommercialRealEstatePortfolioSegment, ncbs:CreInvestment


None
Period End2020-06-302020-03-312019-12-31
Value447448443
Percentage of NotesReceivableGross15.917.217.2

us-gaap:ResidentialPortfolioSegment, us-gaap:ConstructionLoans


None
Period End2020-06-302020-03-312019-12-31
Value515254
Percentage of NotesReceivableGross1.82.02.1

us-gaap:NotesReceivableGross us-gaap:FinancingReceivablePortfolioSegment, us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable, us-gaap:InternalCreditAssessment

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, ncbs:Watch


None
Period End2020-06-302020-03-312019-12-31
Value7.0985.086.785
Percentage of NotesReceivableGross0.30.20.3

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Pass


None
Period End2020-06-302020-03-312019-12-31
Value838177
Percentage of NotesReceivableGross3.03.13.0

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:SpecialMention


None
Period End2020-06-302020-03-312019-12-31
Value0.720.773.275
Percentage of NotesReceivableGross0.00.00.1

us-gaap:CommercialPortfolioSegment, ncbs:Agricultural, us-gaap:Substandard


None
Period End2020-06-302020-03-312019-12-31
Value7.2528.2548.308
Percentage of NotesReceivableGross0.30.30.3

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, ncbs:Watch


None
Period End2020-06-302020-03-312019-12-31
Value352320
Percentage of NotesReceivableGross1.20.90.8

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:Pass


None
Period End2020-06-302020-03-312019-12-31
Value667780765
Percentage of NotesReceivableGross23.729.929.7

us-gaap:CommercialPortfolioSegment, ncbs:CommercialAndIndustrialFinancingReceivables, us-gaap:SpecialMention