KLDO


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesOutstanding

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesAuthorized

us-gaap:PreferredStockSharesAuthorized

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:OperatingExpenses

us-gaap:ResearchAndDevelopmentExpense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:OperatingIncomeLoss

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NonoperatingIncomeExpense

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:LiabilitiesCurrent

us-gaap:AccountsPayableCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LongTermDebtNoncurrent
us-gaap:DebtInstrument

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:DepreciationDepletionAndAmortization

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
kldo:LineOfCreditFacilityFeesAmountPayable
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:InvestmentIncomeInterest

us-gaap:OperatingLeasesRentExpenseNet

us-gaap:OtherNonoperatingExpense

us-gaap:PaidInKindInterest

us-gaap:PaymentsOfStockIssuanceCosts

us-gaap:ProceedsFromStockOptionsExercised
us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations
us-gaap:SubsidiarySaleOfStock
us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

kldo:AccruedExpensesandOtherLiabilitiesCurrent

kldo:AccruedProfessionalFeesConsultingCurrent

kldo:AccruedProfessionalFeesLegalCurrent

kldo:AccruedResearchandDevelopmentCurrent

us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:CapitalLeaseObligationsCurrent
us-gaap:CashAndCashEquivalents
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:CashAndCashEquivalents, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:RestrictedCashNoncurrent

Tables

  2020-06-30
us-gaap:CommonStockValue 0.035
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock35.356629
us-gaap:CommonStockSharesIssued 35.356629
us-gaap:CommonStockSharesAuthorized 150.0
us-gaap:PreferredStockSharesAuthorized 10.0
us-gaap:CommonStockSharesOutstanding 35.356629
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted 31.880672
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NA
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOptionNA
  2020-06-30
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax 0.25
us-gaap:OperatingExpenses 18.392
us-gaap:ResearchAndDevelopmentExpense 12.833
us-gaap:GeneralAndAdministrativeExpense 5.559
us-gaap:OperatingIncomeLoss -18.142
us-gaap:InterestExpense 0.683
us-gaap:InterestPaidNet 0.517
us-gaap:NonoperatingIncomeExpense -0.78
us-gaap:NetIncomeLoss -18.922
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-18.922
  2020-06-30
  2020-06-30
  2020-06-30
us-gaap:Assets 86.979
us-gaap:Liabilities 35.657
us-gaap:LiabilitiesAndStockholdersEquity 86.979
us-gaap:StockholdersEquity 51.322
  2020-06-30
us-gaap:AssetsCurrent 77.235
us-gaap:CashAndCashEquivalentsAtCarryingValue 71.032
us-gaap:PrepaidExpenseAndOtherAssetsCurrent 6.203
  2020-06-30
us-gaap:PropertyPlantAndEquipmentGross 10.01
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment 2.427
us-gaap:PropertyPlantAndEquipmentNet 7.583
  2020-06-30
us-gaap:LiabilitiesCurrent 11.498
us-gaap:AccountsPayableCurrent 3.544
us-gaap:OtherAccruedLiabilitiesCurrent 0.881
us-gaap:ContractWithCustomerLiabilityCurrent 0.556
  2020-06-30
us-gaap:LongTermDebtNoncurrent 20.654
us-gaap:OtherLiabilitiesNoncurrent 3.505
  2020-06-30
us-gaap:StockholdersEquity 51.322
us-gaap:CommonStockValue 0.035
us-gaap:AdditionalPaidInCapital 282.319
us-gaap:RetainedEarningsAccumulatedDeficit -231.032
us-gaap:StockIssuedDuringPeriodValueNewIssues 33.187
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue 2.816
  2020-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities -15.856
us-gaap:NetCashProvidedByUsedInInvestingActivities -0.821
us-gaap:NetCashProvidedByUsedInFinancingActivities 33.779
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect 17.102
  2020-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities -15.856
us-gaap:NetIncomeLoss -18.922
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-18.922
us-gaap:DepreciationDepletionAndAmortization 0.388
us-gaap:ShareBasedCompensation 2.816
  2020-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities -0.821
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment 0.821
  2020-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities 33.779
  2020-06-30

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value35000.030000.030000.030000.030000.030000.06000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.0

None

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3530303029295.7869115.5157245.0496584.7945634.711963
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3530303029296.115535
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value15015015015015015066
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:PreferredStockSharesAuthorized

us-gaap:PreferredStockSharesAuthorized


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value10000000.010000000.010000000.010000000.010000000.010000000.00
Percentage of PreferredStockSharesAuthorized100.0100.0100.0100.0100.0100.00.0

None

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3530303029295.786911
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value31302929125.1463014.8119024.743824
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


None
Period End2020-03-312019-03-312018-03-31
Value6.6942757.11748721
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EmployeeStockOption


None
Period End2020-03-312019-03-312018-03-31
Value6.6942756.9377062.765623
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.097.513.1

None

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


None
Period End2020-06-30
Value250000.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0

None

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value18191822242020171210
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7356.80.00.00.00.00.00.00.00.00.0

None

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value12131416181515109.147.546
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5133.20.00.00.00.00.00.00.00.00.0

None

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5.5595.9174.8845.936.1815.4335.5977.1443.212.67
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2223.60.00.00.00.00.00.00.00.00.0

None

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-18142000.0-19054000.0-18971000.0-22118000.0-24956000.0-20615000.0-20805000.0-17312000.0-12350000.0-10216000.0
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7256.80.00.00.00.00.00.00.00.00.0

None

us-gaap:InterestExpense

us-gaap:InterestExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value683000.0688000.0201000.0258000.0260000.0258000.0260000.0243000.0253000.0249000.0
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax273.20.00.00.00.00.00.00.00.00.0

None

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value517000.0342000.0142000.0246000.0248000.0245000.0243000.0231000.0241000.0228000.0
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax206.80.00.00.00.00.00.00.00.00.0

None

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-780000.0-497000.0-541000.0157000.0317000.0396000.0-425000.0-94000.02000.0-544000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-312.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-18922000.0-19551000.0-19512000.0-21961000.0-24639000.0-20219000.0-21230000.0-17406000.0-12348000.0-10760000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7568.80.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-18922000.0-19551000.0-21961000.0-24639000.0-20219000.0-17406000.0-12348000.0-10760000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7568.80.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.0

None

us-gaap:Assets

us-gaap:Assets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8666829110913185
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:Liabilities

us-gaap:Liabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value35333325252428
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.049.740.627.623.118.433.2

None

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8666829110913185
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value5133486684107-96.244-78.022-65.331-54.045-43.679
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets59.050.359.472.476.981.6-112.80.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2822452412392352339.9786.972.2561.1940.8
Percentage of StockholdersEquity550.1730.8493.9362.0278.5218.0-10.4-8.9-3.5-2.2-1.8
Percentage of Assets324.6367.7293.3262.1214.3177.911.70.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.0350.030.030.030.030.030.0060.0060.0050.0050.005
Percentage of StockholdersEquity0.10.10.10.00.00.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-231.032-212.11-192.559-173.047-151.086-126.447-106.228-84.998-67.592-55.244-44.484
Percentage of StockholdersEquity-450.2-630.9-393.9-262.0-178.5-118.0110.4108.9103.5102.2101.8
Percentage of Assets-265.6-317.4-234.0-189.7-137.4-96.3-124.50.00.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7757738310112376
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets88.886.089.091.292.794.589.4

None

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value715371819912176
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets81.780.586.689.190.992.489.2

None

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value6203000.03665000.02038000.01942000.01958000.02643000.0152000.0
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.15.52.52.11.82.00.2

None

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value109.9719.2817.9977.7416.6175.914
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.514.911.38.87.05.06.9

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

kldo:LaboratoryEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5.794.7914.5264.2634.1533.5033.226
Percentage of PropertyPlantAndEquipmentGross57.848.048.853.353.652.954.5
Percentage of Assets6.77.25.54.73.82.73.8
Percentage of Assets kldo:LaboratoryEquipment0.00.00.00.00.00.00.0

kldo:OfficeAndComputerEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1.3021.4181.4181.4181.4071.3761.337
Percentage of PropertyPlantAndEquipmentGross13.014.215.317.718.220.822.6
Percentage of Assets1.52.11.71.61.31.01.6
Percentage of Assets kldo:OfficeAndComputerEquipment0.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.3793.0752.651.6291.4941.0850.698
Percentage of PropertyPlantAndEquipmentGross23.830.828.620.419.316.411.8
Percentage of Assets2.74.63.21.81.40.80.8
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.0

us-gaap:LeaseholdsAndLeaseholdImprovements


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.5390.6870.6870.6870.6870.6530.653
Percentage of PropertyPlantAndEquipmentGross5.46.97.48.68.99.911.0
Percentage of Assets0.61.00.80.80.60.50.8
Percentage of Assets us-gaap:LeaseholdsAndLeaseholdImprovements0.00.00.00.00.00.00.0

None

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2427000.02908000.02539000.02186000.01845000.01514000.01221000.0
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.84.43.12.41.71.21.4

None

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7583000.07063000.06742000.05811000.05896000.05103000.04693000.0
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.710.68.26.45.43.95.5

None

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value119.3041010118.84911
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.213.912.611.210.66.713.2

None

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3544000.01224000.02016000.01657000.04046000.03575000.03442000.0
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.11.82.41.83.72.74.0

None

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value881000.01202000.01207000.0678000.0623000.0937000.0420000.0
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.81.50.70.60.70.5

None

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


None
Period End2020-06-30
Value556000.0
Percentage of ContractWithCustomerLiabilityCurrent100.0
Percentage of Assets0.6

None

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value20202014131414
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.730.824.816.312.411.317.4

us-gaap:LongTermDebtNoncurrent us-gaap:DebtInstrument

kldo:TwoThousandAndNineteenCreditAgreement


None
Period End2020-06-302020-03-312019-12-31
Value202020
Percentage of LongTermDebtNoncurrent100.0100.0100.0
Percentage of Assets23.730.824.8
Percentage of Assets kldo:TwoThousandAndNineteenCreditAgreement0.00.00.0

None

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3505000.03330000.02652000.0023000.045000.0278000.0
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.00.0100.0100.0100.0
Percentage of Assets4.05.03.20.00.00.00.3

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value5133486684107-96.244-78.022-65.331-54.045-43.679
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets59.050.359.472.476.981.6-112.80.00.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2822452412392352339.9786.972.2561.1940.8
Percentage of StockholdersEquity550.1730.8493.9362.0278.5218.0-10.4-8.9-3.5-2.2-1.8
Percentage of Assets324.6367.7293.3262.1214.3177.911.70.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value0.0350.030.030.030.030.030.0060.0060.0050.0050.005
Percentage of StockholdersEquity0.10.10.10.00.00.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-231.032-212.11-192.559-173.047-151.086-126.447-106.228-84.998-67.592-55.244-44.484
Percentage of StockholdersEquity-450.2-630.9-393.9-262.0-178.5-118.0110.4108.9103.5102.2101.8
Percentage of Assets-265.6-317.4-234.0-189.7-137.4-96.3-124.50.00.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value35000.030000.030000.030000.030000.030000.06000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.0

None

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2822452412392352339.978
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets324.6367.7293.3262.1214.3177.911.7

None

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-231030000.0-212110000.0-192560000.0-173050000.0-151090000.0-126450000.0-106230000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-265.6-317.4-234.0-189.7-137.4-96.3-124.5

None

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


None
Period End2020-06-302019-06-302019-03-31
Value33-0.64466
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0
Percentage of Assets0.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302019-06-302019-03-31
Value33-0.64466
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.0

None

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.8162.7252.9092.42.5283.8220.5030.234
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value2.8162.7252.9092.42.5283.8220.5030.234
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-15856000.0-17899000.0-15647000.0-17688000.0-19665000.0-22796000.0-14153000.0-12533000.0-10172000.0-9458000.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6342.40.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-821000.0-1075000.0-998000.0-719000.0-743000.0-1126000.0-1059000.0-1013000.0-652000.0-278000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-328.40.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value331.5396.712-0.277-0.97169-1.353-0.4082970
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13511.60.00.00.00.00.00.00.00.00.0

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value17-17.435-9.933-18.684-21.37945-16.565-13.9541861
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6840.80.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-15856000.0-17899000.0-15647000.0-17688000.0-19665000.0-22796000.0-14153000.0-12533000.0-10172000.0-9458000.0
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6342.40.00.00.00.00.00.00.00.00.0

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-18922000.0-19551000.0-19512000.0-21961000.0-24639000.0-20219000.0-21230000.0-17406000.0-12348000.0-10760000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7568.80.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-18922000.0-19551000.0-21961000.0-24639000.0-20219000.0-17406000.0-12348000.0-10760000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7568.80.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.0

None

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value388000.0369000.0354000.0340000.0331000.0293000.0-373000.0194000.0179000.0156000.0
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2.8162.7252.2312.9092.42.5282.4053.8220.5030.234
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-821000.0-1075000.0-998000.0-719000.0-743000.0-1126000.0-1059000.0-1013000.0-652000.0-278000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-328.40.00.00.00.00.00.00.00.00.0

None

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value821000.01075000.0998000.0719000.0743000.01126000.01059000.01013000.0652000.0278000.0
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value331.5396.712-0.277-0.97169-1.353-0.4082970
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13511.60.00.00.00.00.00.00.00.00.0

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value7356738310212378941088928
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

kldo:LineOfCreditFacilityFeesAmountPayable us-gaap:DebtInstrument, us-gaap:LongtermDebtType

kldo:LineOfCreditFacilityFeesAmountPayable

kldo:SecondAmendmentToLoanAndSecurityAgreement, kldo:TermLoan


None
Period End2020-06-15
Value79000.0
Percentage of LineOfCreditFacilityFeesAmountPayable100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

kldo:SecondAmendmentToLoanAndSecurityAgreement, kldo:TermLoan


None
Period End2020-06-15
Value0.0935
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.59-0.64-0.6-0.74-0.83-1.56-3.87-3.38-2.57-2.27
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2066000.0-792000.0453000.0-1260000.0252000.0-129000.01010000.0-820000.0870000.0777000.0
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value79000.0631000.0468000.02131000.01293000.0-2543000.02415000.01712000.0581000.013000.0
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2538000.01627000.0221000.0-141000.0-685000.02486000.0-510000.0253000.0-32000.0249000.0
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value30000.0193000.0274000.0429000.0584000.0407000.0402000.0375000.0271000.070000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasesRentExpenseNet

us-gaap:OperatingLeasesRentExpenseNet


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1871000.01779000.01432000.01023000.01023000.01024000.01017000.0299000.0239.0245000.0
Percentage of OperatingLeasesRentExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNonoperatingExpense

us-gaap:OtherNonoperatingExpense


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value127000.02000.034000.014000.07000.05000.054000.0170000.017000.015000.0
Percentage of OtherNonoperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaidInKindInterest

us-gaap:PaidInKindInterest


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-1000.0173000.0-37000.012000.013000.012000.017000.012000.012000.021000.0
Percentage of PaidInKindInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfStockIssuanceCosts

us-gaap:PaymentsOfStockIssuanceCosts


None
Period End2020-06-302019-09-302019-06-302019-03-31
Value306000.0644000.0644000.08411000.0
Percentage of PaymentsOfStockIssuanceCosts100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value620000.01561000.092000.0406000.072000.060000.030000.084000.04000.02000.0
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:SubsequentEvent, us-gaap:OverAllotmentOption


None
Period End2020-07-01
Value1304000.0
Percentage of ProceedsFromStockOptionsExercised0.0

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value23000.022000.022000.022000.022000.025000.027000.027000.025000.026000.0
Percentage of RepaymentsOfLongTermCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction us-gaap:SubsidiarySaleOfStock

us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction

kldo:PublicOffering


None
Period End2020-06-04
Value4750000.0
Percentage of SaleOfStockNumberOfSharesIssuedInTransaction100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:CommonStock


None
Period End2020-06-302019-03-31
Value4750000.05000000.0
Percentage of StockIssuedDuringPeriodSharesNewIssues100.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross

us-gaap:CommonStock


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value1250.020469.0137590.0148840.0371380.0254250.072656.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardGross100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value143090.0334440.0248350.069788.075313.094686.0843.09944.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:SubsequentEvent, us-gaap:OverAllotmentOption


None
Period End2020-07-01
Value185000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised0.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value03000.045000.046000.0301000.0325000.0573000.0809000.0555000.0158000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value3000.046000.0301000.0325000.0808000.0555000.0158000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardGross100.0100.0100.0100.099.9100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value620000.01561000.0420000.072000.060000.084000.04000.02000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value620000.01561000.0420000.072000.060000.084000.04000.02000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0

kldo:AccruedExpensesandOtherLiabilitiesCurrent

kldo:AccruedExpensesandOtherLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7954000.08080000.08361000.08599000.06352000.05274000.07859000.0
Percentage of AccruedExpensesandOtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0

kldo:AccruedProfessionalFeesConsultingCurrent

kldo:AccruedProfessionalFeesConsultingCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value642000.0539000.0230000.0472000.0392000.0467000.0243000.0
Percentage of AccruedProfessionalFeesConsultingCurrent100.0100.0100.0100.0100.0100.0100.0

kldo:AccruedProfessionalFeesLegalCurrent

kldo:AccruedProfessionalFeesLegalCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value148000.0134000.0171000.080000.0176000.0180000.090000.0
Percentage of AccruedProfessionalFeesLegalCurrent100.0100.0100.0100.0100.0100.0100.0

kldo:AccruedResearchandDevelopmentCurrent

kldo:AccruedResearchandDevelopmentCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3740000.04957000.04259000.04258000.02490000.02389000.03718000.0
Percentage of AccruedResearchandDevelopmentCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure

us-gaap:AssetsFairValueDisclosure


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value452525809874
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value452525809874
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0

us-gaap:CapitalLeaseObligationsCurrent

us-gaap:CapitalLeaseObligationsCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value23000.046000.068000.090000.089000.088000.091000.0
Percentage of CapitalLeaseObligationsCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:CashAndCashEquivalents

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:MoneyMarketFunds


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value452525809874
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:CashAndCashEquivalents, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:MoneyMarketFunds, us-gaap:FairValueInputsLevel1


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value452525809874
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:Range, us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateEffectivePercentage

srt:Maximum, kldo:SecondAmendmentToLoanAndSecurityAgreement, kldo:TermLoan


None
Period End2020-06-15
Value0.004
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1792000.01029000.02426000.03021000.02582000.01213000.03297000.0
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity

kldo:DebtInstrumentTrancheThree, kldo:TermLoan


None
Period End2020-06-15
Value7500000.0
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity100.0

kldo:DebtInstrumentTrancheTwo, kldo:TermLoan


None
Period End2020-06-15
Value5000000.0
Percentage of LineOfCreditFacilityCurrentBorrowingCapacity66.7

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

kldo:DebtInstrumentTrancheThree, kldo:TermLoan


None
Period End2020-06-15
Value12
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:RestrictedCashNoncurrent

us-gaap:RestrictedCashNoncurrent


None
Period End2020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2161000.02287000.02285000.02187000.02185000.02182000.02180000.0
Percentage of RestrictedCashNoncurrent100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
None
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
None
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
None