AMTI


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesOutstanding
us-gaap:StatementEquityComponents

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:OperatingExpenses

us-gaap:ResearchAndDevelopmentExpense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:OperatingIncomeLoss

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

amti:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementClassOfStock
amti:TemporaryEquitySharesConversionOfConvertibleSecurities
us-gaap:StatementClassOfStock
amti:TemporaryEquityValueConversionOfConvertibleSecurities

us-gaap:Depreciation

us-gaap:InvestmentIncomeInterest

us-gaap:LeaseAndRentalExpense

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents, us-gaap:SubsidiarySaleOfStock
us-gaap:ProceedsFromIssuanceInitialPublicOffering

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
us-gaap:SubsidiarySaleOfStock
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues
us-gaap:StatementEquityComponents, us-gaap:SubsidiarySaleOfStock
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

amti:AccruedResearchAndDevelopmentExpenseCurrent

amti:CapitalLeaseObligationsOtherCurrentLiabilities

amti:CapitalLeaseObligationsOtherLiabilities
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

us-gaap:CapitalLeaseObligations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance
us-gaap:AwardType
us-gaap:PlanName
us-gaap:SubsidiarySaleOfStock

us-gaap:DeferredRentCreditCurrent

us-gaap:DeferredRentCreditNoncurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:PrepaidExpenseCurrent

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:StatementClassOfStock
us-gaap:TemporaryEquityLiquidationPreference
us-gaap:StatementClassOfStock
us-gaap:TemporaryEquitySharesAuthorized
us-gaap:StatementClassOfStock
us-gaap:TemporaryEquitySharesIssued

us-gaap:TemporaryEquitySharesOutstanding
us-gaap:StatementClassOfStock

Plots across concepts


Balance Sheet
Liabilities Current
Assets
Property Plant And Equipment Net
Current Assets
Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Liabilities Current
Current Liabilities
Other Liabilities Current
Stockholders Equity
Retained Earnings Accumulated Deficit

Tables

  2020-06-302019-12-31
us-gaap:CommonStockValue █▁0.0030.001
us-gaap:CommonStockSharesIssued █▁34.0506247.360738
us-gaap:CommonStockSharesAuthorized █▁450.032.0
us-gaap:CommonStockSharesOutstanding █▁34.0506247.360738
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted 13.86904NA
us-gaap:EarningsPerShareBasicAndDiluted -1.11NA
  2020-06-302019-12-31
  2020-06-302019-12-31
 TTM Greenblatt ROC _ _NANA
  2020-06-302019-12-31
us-gaap:OperatingExpenses 15.323NA
us-gaap:ResearchAndDevelopmentExpense 12.836NA
us-gaap:GeneralAndAdministrativeExpense 2.487NA
us-gaap:OperatingIncomeLoss -15.323NA
us-gaap:OtherNonoperatingIncomeExpense -0.104NA
us-gaap:AllocatedShareBasedCompensationExpense 0.659NA
us-gaap:NetIncomeLoss -15.379NA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-15.379NA
us-gaap:ComprehensiveIncomeNetOfTax -15.396NA
  2020-06-302019-12-31
  2020-06-302019-12-31
us-gaap:Assets █▁172.6638.533
us-gaap:Liabilities █▁7.5514.62
us-gaap:LiabilitiesAndStockholdersEquity █▁172.6638.533
us-gaap:StockholdersEquity █▁165.109-71.702
  2020-06-302019-12-31
us-gaap:AssetsCurrent █▁165.63833.453
us-gaap:CashAndCashEquivalentsAtCarryingValue █▁23.40112.727
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▁23.50912.835
us-gaap:OtherAssetsCurrent █▁0.6110.152
  2020-06-302019-12-31
us-gaap:PropertyPlantAndEquipmentGross █▁9.0055.774
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▁2.2191.683
us-gaap:PropertyPlantAndEquipmentNet █▁6.7864.091
us-gaap:OtherAssetsNoncurrent ▁█0.1280.632
  2020-06-302019-12-31
us-gaap:LiabilitiesCurrent █▁6.874.036
us-gaap:AccountsPayableCurrent █▁4.4372.666
us-gaap:AccruedLiabilitiesCurrent █▁2.2881.315
us-gaap:OtherLiabilitiesCurrent █▁0.0970.042
  2020-06-302019-12-31
us-gaap:OtherLiabilitiesNoncurrent █▁0.1850.058
  2020-06-302019-12-31
us-gaap:StockholdersEquity █▁165.109-71.702
us-gaap:CommonStockValue █▁0.0030.001
us-gaap:AdditionalPaidInCapital █▁268.5881.078
us-gaap:RetainedEarningsAccumulatedDeficit ▁█-103.484-72.794
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▁█0.0020.013
us-gaap:StockIssuedDuringPeriodValueNewIssues 160.623NA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue 0.659NA
  2020-06-302019-12-31
  2020-06-302019-12-31
us-gaap:NetIncomeLoss -15.379NA
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-15.379NA
  2020-06-302019-12-31
  2020-06-302019-12-31
  2020-06-302019-12-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2020-06-302019-12-31
Value3000.01000.0
Percentage of CommonStockValue100.0100.0
Percentage of Assets0.00.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2020-06-302019-12-31
Value347.360738
Percentage of CommonStockSharesIssued100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


Common
Period End2020-06-302019-12-31
Value45032
Percentage of CommonStockSharesAuthorized100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2020-06-302019-12-31
Value347.360738
Percentage of CommonStockSharesOutstanding100.0100.0

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStock


Common
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value347.4343327.3607387.3607387.3607387.360738
Percentage of CommonStockSharesOutstanding100.00.0100.00.00.00.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2020-06-302019-06-30
Value137.360738
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2020-06-302019-06-30
Value-1.11-0.99
Percentage of EarningsPerShareBasicAndDiluted100.0100.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2020-06-302019-06-30
Value157.367
Percentage of OperatingExpenses100.0100.0
Percentage of Revenues0.00.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2020-06-302019-06-30
Value126.5
Percentage of ResearchAndDevelopmentExpense100.0100.0
Percentage of Revenues0.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2020-06-302019-06-30
Value2487000.0867000.0
Percentage of GeneralAndAdministrativeExpense100.0100.0
Percentage of Revenues0.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2020-06-302019-06-30
Value-15323000.0-7367000.0
Percentage of OperatingIncomeLoss100.0100.0
Percentage of Revenues0.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2020-06-30
Value-104000.0
Percentage of OtherNonoperatingIncomeExpense100.0
Percentage of Revenues0.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2020-06-302019-06-30
Value659000.0132000.0
Percentage of AllocatedShareBasedCompensationExpense100.0100.0
Percentage of Revenues0.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:GeneralAndAdministrativeExpense


Allocated
Period End2020-06-302019-06-30
Value241000.033000.0
Percentage of AllocatedShareBasedCompensationExpense36.625.0
Percentage of Revenues0.00.0
Percentage of Revenues us-gaap:GeneralAndAdministrativeExpense0.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2020-06-302019-06-30
Value418000.099000.0
Percentage of AllocatedShareBasedCompensationExpense63.475.0
Percentage of Revenues0.00.0
Percentage of Revenues us-gaap:ResearchAndDevelopmentExpense0.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-06-302020-03-312019-06-302019-03-31
Value-15379000.0-15311000.0-7309000.0-5000000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0
Percentage of Revenues0.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2020-06-302020-03-312019-06-302019-03-31
Value-15379000.0-15311000.0-7309000.0-5000000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0
Percentage of Revenues0.00.00.00.0
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2020-06-302019-06-30
Value-15396000.0-7309000.0
Percentage of ComprehensiveIncomeNetOfTax100.0100.0
Percentage of Revenues0.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2020-06-302019-12-31
Value17238
Percentage of Assets100.0100.0
Percentage of Assets100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2020-06-302019-12-31
Value7551000.04620000.0
Percentage of Liabilities100.0100.0
Percentage of Assets4.412.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2020-06-302019-12-31
Value17238
Percentage of LiabilitiesAndStockholdersEquity100.0100.0
Percentage of Assets100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value165-86.392-71.702-56.248-49.071-44.14
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0
Percentage of Assets95.60.0-186.10.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-06-302020-03-312019-12-31
Value0.0020.0190.013
Percentage of StockholdersEquity0.0-0.0-0.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value2681.6931.0780.8110.6790.61
Percentage of StockholdersEquity162.7-2.0-1.5-1.4-1.4-1.4
Percentage of Assets155.60.02.80.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value0.0030.0010.0010.0010.0010.001
Percentage of StockholdersEquity0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value-103.484-88.105-72.794-57.06-49.751-44.751
Percentage of StockholdersEquity-62.7102.0101.5101.4101.4101.4
Percentage of Assets-59.90.0-188.90.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2020-06-302019-12-31
Value16533
Percentage of AssetsCurrent100.0100.0
Percentage of Assets95.986.8

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2020-06-302019-12-312019-06-30
Value23127.214
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0
Percentage of Assets13.633.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2020-06-302019-12-312019-06-302018-12-31
Value23127.21420
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0
Percentage of Assets13.633.30.00.0

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2020-06-302019-12-31
Value611000.0152000.0
Percentage of OtherAssetsCurrent100.0100.0
Percentage of Assets0.40.4

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-06-302019-12-31
Value9005000.05774000.0
Percentage of PropertyPlantAndEquipmentGross100.0100.0
Percentage of Assets5.215.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

amti:CapitalLeases


Property
Period End2020-06-302019-12-31
Value448000.0188000.0
Percentage of PropertyPlantAndEquipmentGross5.03.3
Percentage of Assets0.30.5
Percentage of Assets amti:CapitalLeases0.00.0

amti:ComputerAndOfficeEquipment


Property
Period End2020-06-302019-12-31
Value237000.0202000.0
Percentage of PropertyPlantAndEquipmentGross2.63.5
Percentage of Assets0.10.5
Percentage of Assets amti:ComputerAndOfficeEquipment0.00.0

amti:LaboratoryAndManufacturingEquipment


Property
Period End2020-06-302019-12-31
Value6354000.03062000.0
Percentage of PropertyPlantAndEquipmentGross70.653.0
Percentage of Assets3.77.9
Percentage of Assets amti:LaboratoryAndManufacturingEquipment0.00.0

us-gaap:ConstructionInProgress


Property
Period End2020-06-302019-12-31
Value1315000.02080000.0
Percentage of PropertyPlantAndEquipmentGross14.636.0
Percentage of Assets0.85.4
Percentage of Assets us-gaap:ConstructionInProgress0.00.0

us-gaap:LeaseholdImprovements


Property
Period End2020-06-302019-12-31
Value651000.0242000.0
Percentage of PropertyPlantAndEquipmentGross7.24.2
Percentage of Assets0.40.6
Percentage of Assets us-gaap:LeaseholdImprovements0.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-06-302019-12-31
Value2219000.01683000.0
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0
Percentage of Assets1.34.4

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2020-06-302019-12-31
Value6786000.04091000.0
Percentage of PropertyPlantAndEquipmentNet100.0100.0
Percentage of Assets3.910.6

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2020-06-302019-12-31
Value128000.0632000.0
Percentage of OtherAssetsNoncurrent100.0100.0
Percentage of Assets0.11.6

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2020-06-302019-12-31
Value6870000.04036000.0
Percentage of LiabilitiesCurrent100.0100.0
Percentage of Assets4.010.5

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2020-06-302019-12-31
Value4437000.02666000.0
Percentage of AccountsPayableCurrent100.0100.0
Percentage of Assets2.66.9

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2020-06-302019-12-31
Value2288000.01315000.0
Percentage of AccruedLiabilitiesCurrent100.0100.0
Percentage of Assets1.33.4

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2020-06-302019-12-31
Value97000.042000.0
Percentage of OtherLiabilitiesCurrent100.0100.0
Percentage of Assets0.10.1

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2020-06-302019-12-31
Value185000.058000.0
Percentage of OtherLiabilitiesNoncurrent100.0100.0
Percentage of Assets0.10.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value165-86.392-71.702-56.248-49.071-44.14
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0
Percentage of Assets95.60.0-186.10.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2020-06-302020-03-312019-12-31
Value0.0020.0190.013
Percentage of StockholdersEquity0.0-0.0-0.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value2681.6931.0780.8110.6790.61
Percentage of StockholdersEquity162.7-2.0-1.5-1.4-1.4-1.4
Percentage of Assets155.60.02.80.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value0.0030.0010.0010.0010.0010.001
Percentage of StockholdersEquity0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2020-06-302020-03-312019-12-312019-06-302019-03-312018-12-31
Value-103.484-88.105-72.794-57.06-49.751-44.751
Percentage of StockholdersEquity-62.7102.0101.5101.4101.4101.4
Percentage of Assets-59.90.0-188.90.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2020-06-302019-12-31
Value3000.01000.0
Percentage of CommonStockValue100.0100.0
Percentage of Assets0.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2020-06-302019-12-31
Value2681.078
Percentage of AdditionalPaidInCapital100.0100.0
Percentage of Assets155.62.8

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2020-06-302019-12-31
Value-103480000.0-72794000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0
Percentage of Assets-59.9-188.9

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2020-06-302019-12-31
Value2000.013000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0
Percentage of Assets0.00.0

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2020-06-30
Value160
Percentage of StockIssuedDuringPeriodValueNewIssues100.0
Percentage of Assets0.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-06-30
Value160
Percentage of StockIssuedDuringPeriodValueNewIssues100.0
Percentage of Assets0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.0

us-gaap:CommonStock


Stock
Period End2020-06-30
Value0.001
Percentage of StockIssuedDuringPeriodValueNewIssues0.0
Percentage of Assets0.0
Percentage of Assets us-gaap:CommonStock0.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2020-06-302020-03-312019-06-302019-03-31
Value659000.0557000.0132000.069000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-06-302020-03-312019-06-302019-03-31
Value659000.0557000.0132000.069000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2020-06-302020-03-312019-06-302019-03-31
Value-15379000.0-15311000.0-7309000.0-5000000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0
Percentage of Revenues0.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2020-06-302020-03-312019-06-302019-03-31
Value-15379000.0-15311000.0-7309000.0-5000000.0
Percentage of NetIncomeLoss100.0100.0100.0100.0
Percentage of Revenues0.00.00.00.0
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2020-06-302019-12-31
Value4309400.02143400.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-06-302019-12-31
Value3.281.22
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0

amti:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

amti:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2020-06-30
Value-17000.0
Percentage of OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0

amti:OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-06-30
Value-17000.0
Percentage of OtherComprehensiveIncomeChangeInUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0

amti:TemporaryEquitySharesConversionOfConvertibleSecurities us-gaap:StatementClassOfStock

amti:TemporaryEquitySharesConversionOfConvertibleSecurities

amti:SeriesAConvertiblePreferredStock


Temporary
Period End2020-06-30
Value5157200.0
Percentage of TemporaryEquitySharesConversionOfConvertibleSecurities100.0

amti:SeriesBConvertiblePreferredStock


Temporary
Period End2020-06-30
Value3992900.0
Percentage of TemporaryEquitySharesConversionOfConvertibleSecurities77.4

amti:SeriesCConvertiblePreferredStock


Temporary
Period End2020-06-30
Value4816200.0
Percentage of TemporaryEquitySharesConversionOfConvertibleSecurities93.4

amti:TemporaryEquityValueConversionOfConvertibleSecurities us-gaap:StatementClassOfStock

amti:TemporaryEquityValueConversionOfConvertibleSecurities

amti:SeriesAConvertiblePreferredStock


Temporary
Period End2020-06-30
Value32
Percentage of TemporaryEquityValueConversionOfConvertibleSecurities100.0

amti:SeriesBConvertiblePreferredStock


Temporary
Period End2020-06-30
Value30
Percentage of TemporaryEquityValueConversionOfConvertibleSecurities94.2

amti:SeriesCConvertiblePreferredStock


Temporary
Period End2020-06-30
Value41
Percentage of TemporaryEquityValueConversionOfConvertibleSecurities127.5

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2020-06-302019-06-30
Value400000.0100000.0
Percentage of Depreciation100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2020-06-302019-06-30
Value48000.058000.0
Percentage of InvestmentIncomeInterest100.0100.0

us-gaap:LeaseAndRentalExpense

us-gaap:LeaseAndRentalExpense


Lease
Period End2020-06-302019-06-30
Value500000.0300000.0
Percentage of LeaseAndRentalExpense100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax


Other
Period End2020-06-30
Value19000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2020-06-302020-03-31
Value2000.06000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2020-03-31
Value6000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0

us-gaap:ProceedsFromIssuanceInitialPublicOffering us-gaap:StatementEquityComponents, us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromIssuanceInitialPublicOffering

us-gaap:CommonStock, us-gaap:IPO


Proceeds
Period End2020-06-09
Value160
Percentage of ProceedsFromIssuanceInitialPublicOffering100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


Share
Period End2020-06-30
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue


Share
Period End2020-06-30
Value9.01
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice


Share
Period End2020-05-312020-03-31
Value6.486.14
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent us-gaap:SubsidiarySaleOfStock

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent

us-gaap:EmployeeStock


Sharebased
Period End2020-05-31
Value0.85
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent100.0

us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities

us-gaap:CommonStock


Stock
Period End2020-06-30
Value13
Percentage of StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:CommonStock


Stock
Period End2020-06-30
Value12
Percentage of StockIssuedDuringPeriodSharesNewIssues100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues us-gaap:StatementEquityComponents, us-gaap:SubsidiarySaleOfStock

us-gaap:CommonStock, us-gaap:IPO


Stock
Period End2020-06-09
Value12
Percentage of StockIssuedDuringPeriodSharesNewIssues0.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock


Stock
Period End2020-03-31
Value73594.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities


Stock
Period End2020-06-30
Value105
Percentage of StockIssuedDuringPeriodValueConversionOfConvertibleSecurities100.0

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-06-30
Value105
Percentage of StockIssuedDuringPeriodValueConversionOfConvertibleSecurities100.0

us-gaap:CommonStock


Stock
Period End2020-06-30
Value0.001
Percentage of StockIssuedDuringPeriodValueConversionOfConvertibleSecurities0.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2020-03-31
Value58000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-03-31
Value58000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0

amti:AccruedResearchAndDevelopmentExpenseCurrent

amti:AccruedResearchAndDevelopmentExpenseCurrent


Accrued
Period End2020-06-302019-12-31
Value893000.0621000.0
Percentage of AccruedResearchAndDevelopmentExpenseCurrent100.0100.0

amti:CapitalLeaseObligationsOtherCurrentLiabilities

amti:CapitalLeaseObligationsOtherCurrentLiabilities


Capital
Period End2020-06-302019-12-31
Value97000.042000.0
Percentage of CapitalLeaseObligationsOtherCurrentLiabilities100.0100.0

amti:CapitalLeaseObligationsOtherLiabilities

amti:CapitalLeaseObligationsOtherLiabilities


Capital
Period End2020-06-302019-12-31
Value185000.058000.0
Percentage of CapitalLeaseObligationsOtherLiabilities100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:USTreasurySecurities, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-302019-12-31
Value4000.013000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-302019-12-31
Value4000.013000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:USTreasurySecurities, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-30
Value2000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-30
Value2000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

amti:MoneyMarketFundsInvestedInUSGovernmentObligations, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-302019-12-31
Value220.069
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0

us-gaap:USTreasurySecurities, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-302019-12-31
Value13919
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis621.028858.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-302019-12-31
Value16219
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis721.028958.0

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

us-gaap:AvailableForSaleSecuritiesDebtSecurities

amti:MoneyMarketFundsInvestedInUSGovernmentObligations, us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-302019-12-31
Value220.069
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0

us-gaap:USTreasurySecurities, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-302019-12-31
Value13919
Percentage of AvailableForSaleSecuritiesDebtSecurities621.028876.8

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Available
Period End2020-06-302019-12-31
Value16219
Percentage of AvailableForSaleSecuritiesDebtSecurities721.028976.8

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:USTreasurySecurities


Available
Period End2020-06-30
Value139
Percentage of AvailableForSaleSecuritiesDebtSecurities621.2

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent


Available
Period End2020-06-302019-12-31
Value13919
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent100.0100.0

us-gaap:CapitalLeaseObligations

us-gaap:CapitalLeaseObligations


Capital
Period End2020-06-302019-12-31
Value282000.0100000.0
Percentage of CapitalLeaseObligations100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Cash
Period End2020-06-302019-06-30
Value237.214
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance


Common
Period End2020-06-302019-12-31
Value8.26058717
Percentage of CommonStockCapitalSharesReservedForFutureIssuance100.0100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance us-gaap:AwardType

amti:StockOptionsIssuedAndOutstanding


Common
Period End2020-06-302019-12-31
Value4.3094482.143368
Percentage of CommonStockCapitalSharesReservedForFutureIssuance52.212.2

us-gaap:EmployeeStockOption


Common
Period End2020-06-302019-12-31
Value3.6371331.435402
Percentage of CommonStockCapitalSharesReservedForFutureIssuance44.08.2

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance us-gaap:PlanName

amti:TwoThousandAndTwentyEquityIncentivePlan


Common
Period End2020-06-30
Value3.768075
Percentage of CommonStockCapitalSharesReservedForFutureIssuance45.6

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance us-gaap:SubsidiarySaleOfStock

us-gaap:EmployeeStock


Common
Period End2020-06-30
Value0.314006
Percentage of CommonStockCapitalSharesReservedForFutureIssuance3.8

us-gaap:DeferredRentCreditCurrent

us-gaap:DeferredRentCreditCurrent


Deferred
Period End2020-06-302019-12-31
Value48000.013000.0
Percentage of DeferredRentCreditCurrent100.0100.0

us-gaap:DeferredRentCreditNoncurrent

us-gaap:DeferredRentCreditNoncurrent


Deferred
Period End2020-06-302019-12-31
Value496000.0526000.0
Percentage of DeferredRentCreditNoncurrent100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2020-06-302019-12-31
Value1108000.0694000.0
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid
Period End2020-06-302019-12-31
Value1764000.0532000.0
Percentage of PrepaidExpenseCurrent100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant


Share
Period End2020-06-302019-12-31
Value3637100.01435400.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-06-302019-12-31
Value9410
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0

us-gaap:TemporaryEquityLiquidationPreference us-gaap:StatementClassOfStock

us-gaap:TemporaryEquityLiquidationPreference

amti:SeriesAConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.033
Percentage of TemporaryEquityLiquidationPreference0.0100.0

amti:SeriesBConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.031
Percentage of TemporaryEquityLiquidationPreference0.094.0

amti:SeriesCConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.041
Percentage of TemporaryEquityLiquidationPreference0.0127.1

us-gaap:TemporaryEquitySharesAuthorized us-gaap:StatementClassOfStock

us-gaap:TemporaryEquitySharesAuthorized

amti:SeriesAConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.05.157213
Percentage of TemporaryEquitySharesAuthorized0.0100.0

amti:SeriesBConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.03.992919
Percentage of TemporaryEquitySharesAuthorized0.077.4

amti:SeriesCConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.04.81616
Percentage of TemporaryEquitySharesAuthorized0.093.4

us-gaap:TemporaryEquitySharesIssued us-gaap:StatementClassOfStock

us-gaap:TemporaryEquitySharesIssued

amti:SeriesAConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.05.157213
Percentage of TemporaryEquitySharesIssued0.0100.0

amti:SeriesBConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.03.992919
Percentage of TemporaryEquitySharesIssued0.077.4

amti:SeriesCConvertiblePreferredStock


Temporary
Period End2020-06-302019-12-31
Value0.04.81616
Percentage of TemporaryEquitySharesIssued0.093.4

us-gaap:TemporaryEquitySharesOutstanding

us-gaap:TemporaryEquitySharesOutstanding


Temporary
Period End2020-06-302019-12-31
Value0.013
Percentage of TemporaryEquitySharesOutstanding0.0100.0

us-gaap:TemporaryEquitySharesOutstanding us-gaap:StatementClassOfStock

amti:SeriesAConvertiblePreferredStock


Temporary
Period End2020-06-302020-03-312019-12-312019-03-312018-12-31
Value0.05.1572135.1572135.1572135.157213
Percentage of TemporaryEquitySharesOutstanding0.00.036.90.00.0

amti:SeriesBConvertiblePreferredStock


Temporary
Period End2020-06-302020-03-312019-12-312019-03-312018-12-31
Value0.03.9929193.9929193.9929193.992919
Percentage of TemporaryEquitySharesOutstanding0.00.028.60.00.0

amti:SeriesCConvertiblePreferredStock


Temporary
Period End2020-06-302020-03-312019-12-31
Value0.04.816164.81616
Percentage of TemporaryEquitySharesOutstanding0.00.034.5

Line plots across dimensions of each concept


us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components