$NKTX
Nkarta Inc

2019 Q4 Form 10-K Financial Statement

#000156459021015517 Filed on March 25, 2021

View on sec.gov

Income Statement

Concept 2019 Q4 2019 2018 Q4
Revenue $0.00 $115.0K
YoY Change -98.24%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin $1.970M $5.250M
YoY Change 98.11%
% of Gross Profit
Research & Development $6.680M $17.22M
YoY Change 305.11%
% of Gross Profit
Depreciation & Amortization $330.0K $400.0K
YoY Change 122.22%
% of Gross Profit
Operating Expenses $8.650M $22.46M
YoY Change 225.09%
Operating Profit -$22.35M
YoY Change
Interest Expense $240.0K $690.0K
YoY Change 762.5%
% of Operating Profit
Other Income/Expense, Net -$2.080M $1.273M
YoY Change
Pretax Income -$10.49M -$21.08M
YoY Change 7707.41%
Income Tax $0.00
% Of Pretax Income
Net Earnings -$10.49M -$21.08M
YoY Change 7705.93%
Net Earnings / Revenue -18326.96%
Basic Earnings Per Share
Diluted Earnings Per Share -$0.34 -$692.7K
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding

Balance Sheet

Concept 2019 Q4 2019 2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments $36.99M $37.00M
YoY Change 368.35%
Cash & Equivalents $20.61M $20.60M $7.956M
Short-Term Investments $16.38M $16.40M
Other Short-Term Assets $67.00K $500.0K
YoY Change 150.0%
Inventory
Prepaid Expenses $407.0K
Receivables
Other Receivables
Total Short-Term Assets $37.47M $37.50M
YoY Change 357.32%
LONG-TERM ASSETS
Property, Plant & Equipment $3.080M $10.20M
YoY Change 684.62%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets $455.0K $700.0K
YoY Change 600.0%
Total Long-Term Assets $10.95M $10.90M
YoY Change 678.57%
TOTAL ASSETS
Total Short-Term Assets $37.47M $37.50M
Total Long-Term Assets $10.95M $10.90M
Total Assets $48.41M $48.40M
YoY Change 404.17%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $1.882M $1.900M
YoY Change 375.0%
Accrued Expenses $3.289M $4.200M
YoY Change 162.5%
Deferred Revenue
YoY Change
Short-Term Debt $0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $8.165M $8.200M
YoY Change 290.48%
LONG-TERM LIABILITIES
Long-Term Debt $0.00
YoY Change
Other Long-Term Liabilities $134.0K $5.900M
YoY Change 2850.0%
Total Long-Term Liabilities $134.0K $5.900M
YoY Change 2850.0%
TOTAL LIABILITIES
Total Short-Term Liabilities $8.165M $8.200M
Total Long-Term Liabilities $134.0K $5.900M
Total Liabilities $14.08M $14.10M
YoY Change 513.04%
SHAREHOLDERS EQUITY
Retained Earnings -$26.66M
YoY Change
Common Stock $1.180M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity -$25.48M $34.30M -$5.396M
YoY Change
Total Liabilities & Shareholders Equity $48.41M $48.40M
YoY Change 404.17%

Cashflow Statement

Concept 2019 Q4 2019 2018 Q4
OPERATING ACTIVITIES
Net Income -$10.49M -$21.08M
YoY Change 7705.93%
Depreciation, Depletion And Amortization $330.0K $400.0K
YoY Change 122.22%
Cash From Operating Activities -$14.55M -$18.37M
YoY Change 254.58%
INVESTING ACTIVITIES
Capital Expenditures -$1.500M $1.928M
YoY Change -353.68%
Acquisitions
YoY Change
Other Investing Activities -$16.37M -$16.37M
YoY Change
Cash From Investing Activities -$17.87M -$18.30M
YoY Change 2307.24%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 49.59M 49.58M
YoY Change 54990.0%
NET CHANGE
Cash From Operating Activities -14.55M -18.37M
Cash From Investing Activities -17.87M -18.30M
Cash From Financing Activities 49.59M 49.58M
Net Change In Cash 17.17M 12.92M
YoY Change -320.84%
FREE CASH FLOW
Cash From Operating Activities -$14.55M -$18.37M
Capital Expenditures -$1.500M $1.928M
Free Cash Flow -$13.05M -$20.30M
YoY Change 359.16%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2020 dei Document Annual Report
DocumentAnnualReport
true
CY2020 dei Entity Voluntary Filers
EntityVoluntaryFilers
No
CY2020 dei Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
No
CY2020Q3 dei Entity Public Float
EntityPublicFloat
657500000
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
96692000
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
20607000
CY2020Q4 us-gaap Available For Sale Securities Debt Securities Current
AvailableForSaleSecuritiesDebtSecuritiesCurrent
218221000
CY2019Q4 us-gaap Available For Sale Securities Debt Securities Current
AvailableForSaleSecuritiesDebtSecuritiesCurrent
16384000
CY2020Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
3922000
CY2019Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
474000
CY2020Q4 us-gaap Assets Current
AssetsCurrent
318835000
CY2019Q4 us-gaap Assets Current
AssetsCurrent
37465000
CY2020Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
413000
CY2019Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
268000
CY2020Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
9350000
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
3080000
CY2020Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
8505000
CY2019Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
7144000
CY2020Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
547000
CY2019Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
455000
CY2020Q4 us-gaap Assets
Assets
337650000
CY2019Q4 us-gaap Assets
Assets
48412000
CY2020Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
1176000
CY2019Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
1882000
CY2020Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
1402000
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
1516000
CY2019Q4 nktx Preferred Stock Purchase Right Liability
PreferredStockPurchaseRightLiability
1478000
CY2020Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
6253000
CY2019Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
3289000
CY2019Q4 us-gaap Liabilities Current
LiabilitiesCurrent
8165000
CY2019Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
5780000
CY2019Q4 us-gaap Liabilities
Liabilities
14079000
CY2019Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
CY2020Q4 us-gaap Preferred Stock Value
PreferredStockValue
CY2019Q4 us-gaap Preferred Stock Value
PreferredStockValue
CY2020Q4 us-gaap Common Stock Value
CommonStockValue
3000
CY2019Q4 us-gaap Common Stock Value
CommonStockValue
1000
CY2020Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
439235000
CY2019Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
134000
CY2019Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
1179000
CY2020Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
3000
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-2000
CY2020Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-118021000
CY2019Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-26660000
CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
321220000
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
-25482000
CY2020Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
337650000
CY2019Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
48412000
CY2020Q4 us-gaap Temporary Equity Par Or Stated Value Per Share
TemporaryEquityParOrStatedValuePerShare
0.0001
CY2019Q4 us-gaap Temporary Equity Par Or Stated Value Per Share
TemporaryEquityParOrStatedValuePerShare
0.0001
CY2020Q4 us-gaap Temporary Equity Shares Authorized
TemporaryEquitySharesAuthorized
0
CY2019Q4 us-gaap Temporary Equity Shares Authorized
TemporaryEquitySharesAuthorized
54350179
CY2020Q4 us-gaap Temporary Equity Shares Issued
TemporaryEquitySharesIssued
0
CY2019Q4 us-gaap Temporary Equity Shares Issued
TemporaryEquitySharesIssued
27283973
CY2020Q4 us-gaap Temporary Equity Shares Outstanding
TemporaryEquitySharesOutstanding
0
CY2019Q4 us-gaap Temporary Equity Shares Outstanding
TemporaryEquitySharesOutstanding
27283973
CY2020Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.0001
CY2019Q4 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.0001
CY2020Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
54350179
CY2019Q4 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
0
CY2020Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0
CY2019Q4 us-gaap Preferred Stock Shares Issued
PreferredStockSharesIssued
0
CY2020Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0
CY2019Q4 us-gaap Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
0
CY2020Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.0001
CY2019Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.0001
CY2020Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
100000000
CY2019Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
71919982
CY2020Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
32627963
CY2019Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
1600601
CY2020Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
32627963
CY2019Q4 us-gaap Common Stock Shares Outstanding
CommonStockSharesOutstanding
1600601
CY2019 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
115000
CY2020 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
36220000
CY2019 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
17217000
CY2020 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
15288000
CY2019 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
5247000
CY2020 us-gaap Operating Expenses
OperatingExpenses
51508000
CY2019 us-gaap Operating Expenses
OperatingExpenses
22464000
CY2020 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
-40163000
CY2019 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
1318000
CY2020 us-gaap Operating Income Loss
OperatingIncomeLoss
-51508000
CY2019 us-gaap Operating Income Loss
OperatingIncomeLoss
-22349000
CY2019 nktx Change In Fair Value Of Derivative Liability
ChangeInFairValueOfDerivativeLiability
858000
CY2019 us-gaap Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
-752000
CY2020 us-gaap Investment Income Net
InvestmentIncomeNet
313000
CY2019 us-gaap Investment Income Net
InvestmentIncomeNet
304000
CY2019 nktx Non Cash Interest Expense On Convertible Notes
NonCashInterestExpenseOnConvertibleNotes
473000
CY2020 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-3000
CY2019 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
18000
CY2020 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-39853000
CY2019 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
1273000
CY2020 us-gaap Net Income Loss
NetIncomeLoss
-91361000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-21076000
CY2020 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
5000
CY2019 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-2000
CY2020 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-91356000
CY2019 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-21078000
CY2020 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-5.44
CY2019 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-14.41
CY2020 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
16806262
CY2019 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
1462511
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
-5396000
CY2019 nktx Stock Issued During Period Value Vesting Of Shares Of Common Stock Subject To Repurchase
StockIssuedDuringPeriodValueVestingOfSharesOfCommonStockSubjectToRepurchase
42000
CY2019 us-gaap Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
3000
CY2019 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
947000
CY2020 us-gaap Stock Issued During Period Value Conversion Of Convertible Securities
StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
165777000
CY2020 us-gaap Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
265096000
CY2020 nktx Stock Issued During Period Value Vesting Of Shares Of Common Stock Subject To Repurchase
StockIssuedDuringPeriodValueVestingOfSharesOfCommonStockSubjectToRepurchase
50000
CY2020 us-gaap Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
387000
CY2020 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
6748000
CY2020 us-gaap Profit Loss
ProfitLoss
-91361000
CY2019 us-gaap Profit Loss
ProfitLoss
-21076000
CY2020 us-gaap Share Based Compensation
ShareBasedCompensation
6748000
CY2019 us-gaap Share Based Compensation
ShareBasedCompensation
947000
CY2020 us-gaap Depreciation And Amortization
DepreciationAndAmortization
786000
CY2019 us-gaap Depreciation And Amortization
DepreciationAndAmortization
401000
CY2020 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
-738000
CY2019 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
19000
CY2020 us-gaap Operating Lease Right Of Use Asset Amortization Expense
OperatingLeaseRightOfUseAssetAmortizationExpense
262000
CY2019 us-gaap Operating Lease Right Of Use Asset Amortization Expense
OperatingLeaseRightOfUseAssetAmortizationExpense
152000
CY2019 us-gaap Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
858000
CY2019 nktx Non Cash Interest Expense
NonCashInterestExpense
473000
CY2020 us-gaap Other Noncash Income Expense
OtherNoncashIncomeExpense
14000
CY2020 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
3645000
CY2019 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
463000
CY2020 nktx Increase Decrease In Accounts Payable And Accrued And Other Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedAndOtherLiabilities
2817000
CY2019 nktx Increase Decrease In Accounts Payable And Accrued And Other Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedAndOtherLiabilities
2642000
CY2020 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-43506000
CY2019 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-18367000
CY2020 us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
222570000
CY2019 us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
16367000
CY2020 us-gaap Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
20000000
CY2020 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
7511000
CY2019 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
1928000
CY2020 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-210081000
CY2019 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-18295000
CY2020 nktx Proceeds From Issuance Of Convertible Preferred Stock Net Of Issuance Costs
ProceedsFromIssuanceOfConvertiblePreferredStockNetOfIssuanceCosts
64321000
CY2019 nktx Proceeds From Issuance Of Convertible Preferred Stock Net Of Issuance Costs
ProceedsFromIssuanceOfConvertiblePreferredStockNetOfIssuanceCosts
43548000
CY2020 us-gaap Proceeds From Issuance Initial Public Offering
ProceedsFromIssuanceInitialPublicOffering
265096000
CY2019 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
49581000
CY2020 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
387000
CY2020 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
76230000
CY2020Q4 us-gaap Short Term Investments
ShortTermInvestments
218221000
CY2020Q4 us-gaap Assets Fair Value Disclosure
AssetsFairValueDisclosure
312852000
CY2019 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
3000
CY2020 nktx Proceeds From Early Exercise Of Stock Options
ProceedsFromEarlyExerciseOfStockOptions
13000
CY2019 nktx Proceeds From Early Exercise Of Stock Options
ProceedsFromEarlyExerciseOfStockOptions
44000
CY2019 us-gaap Proceeds From Convertible Debt
ProceedsFromConvertibleDebt
5986000
CY2020 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
329817000
CY2019 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
12919000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
20875000
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
7956000
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
97105000
CY2020Q4 us-gaap Restricted Cash
RestrictedCash
413000
CY2019Q4 us-gaap Restricted Cash
RestrictedCash
268000
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
97105000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
20875000
CY2020 us-gaap Noncash Or Part Noncash Acquisition Fixed Assets Acquired1
NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
455000
CY2019 us-gaap Noncash Or Part Noncash Acquisition Fixed Assets Acquired1
NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
265000
CY2019 nktx Deferred Offering Costs Included In Accounts Payable And Accrued Liabilities
DeferredOfferingCostsIncludedInAccountsPayableAndAccruedLiabilities
104000
CY2020 us-gaap Use Of Estimates
UseOfEstimates
<p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;text-transform:none;font-variant: normal;">Use of Estimates</p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:5.24%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the Company&#8217;s financial statements and accompanying notes. On an ongoing basis, management evaluates its estimates, including those related to preclinical studies, fair value of assets and liabilities, convertible preferred stock, share-based compensation and income taxes. Management bases its estimates on historical experience, knowledge of current events and actions it may undertake in the future that management believes to be reasonable under the circumstances. Actual results may differ from these estimates and assumptions.</p>
CY2020 us-gaap Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
<p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-style:italic;color:#000000;font-family:Times New Roman;font-size:10pt;text-transform:none;font-variant: normal;">Concentration of Credit Risk</p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:5.24%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Financial instruments, which potentially subject the Company to concentration of credit risk, consist primarily of cash, cash equivalents and short-term investments. The Company maintains cash, cash equivalents and short-term investments with various high credit quality and are invested through banks and other financial institutions in the United States. Such deposits may be in excess of federally insured limits. Management believes that the Company is not exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held. The Company has not experienced any losses on deposits since inception.</p>
CY2019Q4 us-gaap Short Term Investments
ShortTermInvestments
16384000
CY2020 nktx Schedule Of Share Based Compensation Additional Information Related To Stock Options
ScheduleOfShareBasedCompensationAdditionalInformationRelatedToStockOptions
<p style="margin-top:6pt;margin-bottom:0pt;text-indent:5.24%;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="Background-color:#FFFFFF;">Additional information related to the Company&#8217;s stock options is summarized below (in thousands, except per share amounts):</font></p> <div> <table border="0" cellspacing="0" cellpadding="0" align="center" style="border-collapse:collapse; width:100%;"> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:64.58%; border-bottom:solid 0.75pt transparent;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.54%; border-bottom:solid 0.75pt transparent;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="6" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:32.86%; border-bottom:solid 0.75pt #000000;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Year Ended December&#160;31,</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> <tr> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:64.58%; border-bottom:solid 0.75pt transparent;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.54%; border-bottom:solid 0.75pt transparent;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.16%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">2020</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1.54%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt transparent;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td colspan="2" valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:15.16%; border-top:solid 0.75pt #000000; border-bottom:solid 0.75pt #000000;"> <p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">2019</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> <tr> <td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:64.58%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Weighted-average grant-date fair value of stock option grants per share</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.54%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:14.16%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">12.84</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.54%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:14.16%; border-top:solid 0.75pt #000000;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">2.70</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> <tr> <td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:64.58%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.54%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:14.16%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.54%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:14.16%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> <tr> <td valign="top" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:64.58%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Intrinsic value of options exercised</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.54%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:14.16%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">1,444</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.54%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:14.16%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">104</p></td> <td valign="bottom" bgcolor="#FFFFFF" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> <tr> <td valign="top" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:64.58%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Fair value of options vested</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.54%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:14.16%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">2,664</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1.54%;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">$</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:14.16%;white-space:nowrap;"> <p style="text-align:right;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">656</p></td> <td valign="bottom" bgcolor="#CFF0FC" style="padding-left:0pt;padding-Right:0.75pt;padding-Top:0.75pt;padding-Bottom:0pt;width:1%;white-space:nowrap;"> <p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:1pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&nbsp;</p></td> </tr> </table></div>
CY2020 us-gaap Number Of Operating Segments
NumberOfOperatingSegments
1
CY2020Q4 nktx Cash Cash Equivalents Restricted Cash And Short Term Investments
CashCashEquivalentsRestrictedCashAndShortTermInvestments
315300000
CY2020 us-gaap Stockholders Equity Note Stock Split Conversion Ratio1
StockholdersEquityNoteStockSplitConversionRatio1
3.7
CY2020 us-gaap Stockholders Equity Reverse Stock Split
StockholdersEquityReverseStockSplit
On July 1, 2020, the Company effected a 1-for-3.7 reverse stock split (the “Reverse Stock Split”) of its issued and outstanding common stock. Accordingly, the conversion ratio for the Company’s outstanding convertible preferred stock was proportionately adjusted such that the common stock issuable upon conversion of such preferred stock was decreased in proportion to the Reverse Stock Split. The par value of the common stock was not adjusted as a result of the Reverse Stock Split. All references to common stock, options to purchase common stock, early exercised options, share data, per share data, convertible preferred stock (to the extent presented on an as-converted to common stock basis) and related information contained in these financial statements have been retrospectively adjusted to reflect the effect of the Reverse Stock Split for all periods presented.
CY2020 us-gaap Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
0
CY2020Q3 us-gaap Deferred Offering Costs
DeferredOfferingCosts
4400000
CY2020Q4 us-gaap Loss Contingency Accrual At Carrying Value
LossContingencyAccrualAtCarryingValue
0
us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
0
CY2020 us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
16918664
CY2019 us-gaap Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
1712639
CY2020 nktx Weighted Average Number Of Shares Unvested Common Stock Issued Upon Early Exercise Of Common Stock Options
WeightedAverageNumberOfSharesUnvestedCommonStockIssuedUponEarlyExerciseOfCommonStockOptions
-112402
CY2019 nktx Weighted Average Number Of Shares Unvested Common Stock Issued Upon Early Exercise Of Common Stock Options
WeightedAverageNumberOfSharesUnvestedCommonStockIssuedUponEarlyExerciseOfCommonStockOptions
-165589
CY2019 nktx Weighted Average Number Of Shares Unvested Founder Shares Of Common Stock
WeightedAverageNumberOfSharesUnvestedFounderSharesOfCommonStock
-84539
CY2020 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
3718108
CY2019 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
9835799
CY2020Q4 us-gaap Money Market Funds At Carrying Value
MoneyMarketFundsAtCarryingValue
94631000
CY2019Q4 us-gaap Commercial Paper At Carrying Value
CommercialPaperAtCarryingValue
2395000
CY2019Q4 us-gaap Assets Fair Value Disclosure
AssetsFairValueDisclosure
18779000
CY2019Q4 nktx Preferred Stock Purchase Right Liability Fair Value Disclosure
PreferredStockPurchaseRightLiabilityFairValueDisclosure
1478000
CY2019 nktx Impairments
Impairments
0
CY2020 us-gaap Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
0
CY2020Q3 nktx Preferred Stock Purchase Right Liability Fair Value Disclosure
PreferredStockPurchaseRightLiabilityFairValueDisclosure
41600000
CY2019Q3 nktx Fair Value Of Preferred Stock Purchase Right Liability Percentage
FairValueOfPreferredStockPurchaseRightLiabilityPercentage
0.90
CY2019Q4 nktx Fair Value Of Preferred Stock Purchase Right Liability Percentage
FairValueOfPreferredStockPurchaseRightLiabilityPercentage
0.90
CY2019Q3 nktx Fair Value Of Preferred Stock Purchase Right Liability Discount Rate
FairValueOfPreferredStockPurchaseRightLiabilityDiscountRate
0.018
CY2019Q4 nktx Fair Value Of Preferred Stock Purchase Right Liability Discount Rate
FairValueOfPreferredStockPurchaseRightLiabilityDiscountRate
0.016
CY2019Q3 nktx Fair Value Of Preferred Stock Purchase Right Liability Outstanding Term
FairValueOfPreferredStockPurchaseRightLiabilityOutstandingTerm
P1Y1M6D
CY2019Q4 nktx Fair Value Of Preferred Stock Purchase Right Liability Outstanding Term
FairValueOfPreferredStockPurchaseRightLiabilityOutstandingTerm
P9M18D
CY2019Q4 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
1478000
CY2020 nktx Fair Value Measurement With Unobservable Inputs Reconciliations Reclassification Of Preferred Stock Purchase Right Liability To Equity Upon Issuance Of Convertible Preferred Stock
FairValueMeasurementWithUnobservableInputsReconciliationsReclassificationOfPreferredStockPurchaseRightLiabilityToEquityUponIssuanceOfConvertiblePreferredStock
41641000
CY2020Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
2586000
CY2019Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
407000
CY2020Q4 us-gaap Other Assets Current
OtherAssetsCurrent
1336000
CY2019Q4 us-gaap Other Assets Current
OtherAssetsCurrent
67000
CY2020Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
10781000
CY2019Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
3725000
CY2020Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
1431000
CY2019Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
645000
CY2020 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
800000
CY2019 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
400000
CY2020Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
3534000
CY2019Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
1678000
CY2020Q4 nktx Accrued Research And Development Costs Current
AccruedResearchAndDevelopmentCostsCurrent
1675000
CY2019Q4 nktx Accrued Research And Development Costs Current
AccruedResearchAndDevelopmentCostsCurrent
702000
CY2020Q4 nktx Accrued Property And Equipment Liabilities Current
AccruedPropertyAndEquipmentLiabilitiesCurrent
117000
CY2019Q4 nktx Accrued Property And Equipment Liabilities Current
AccruedPropertyAndEquipmentLiabilitiesCurrent
214000
CY2019Q4 nktx Deferred Offering Costs Liabilities Current
DeferredOfferingCostsLiabilitiesCurrent
104000
CY2020Q4 us-gaap Accounts Payable And Other Accrued Liabilities Current
AccountsPayableAndOtherAccruedLiabilitiesCurrent
927000
CY2019Q4 us-gaap Accounts Payable And Other Accrued Liabilities Current
AccountsPayableAndOtherAccruedLiabilitiesCurrent
591000
CY2020Q4 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
6253000
CY2019Q4 us-gaap Accounts Payable And Accrued Liabilities Current
AccountsPayableAndAccruedLiabilitiesCurrent
3289000
CY2020 us-gaap Operating Lease Cost
OperatingLeaseCost
1856000
CY2019 us-gaap Operating Lease Cost
OperatingLeaseCost
1315000
CY2020 us-gaap Variable Lease Cost
VariableLeaseCost
178000
CY2019 us-gaap Variable Lease Cost
VariableLeaseCost
126000
CY2020 us-gaap Short Term Lease Cost
ShortTermLeaseCost
14000
CY2020 us-gaap Lease Cost
LeaseCost
2048000
CY2019 us-gaap Lease Cost
LeaseCost
1441000
CY2020 us-gaap Operating Lease Payments
OperatingLeasePayments
1705000
CY2019 us-gaap Operating Lease Payments
OperatingLeasePayments
1180000
CY2020 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
2401000
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
5107000
CY2020Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.10
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
1461000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
1452000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
1503000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
1556000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
1610000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
5371000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
12953000
CY2020Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
4034000
CY2020Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
8919000
CY2020Q4 nktx Lessee Operating Lease Lease Not Yet Commenced Minimum Lease Payments
LesseeOperatingLeaseLeaseNotYetCommencedMinimumLeasePayments
4500000
CY2019Q4 nktx Lessee Operating Lease Lease Not Yet Commenced Minimum Lease Payments
LesseeOperatingLeaseLeaseNotYetCommencedMinimumLeasePayments
700000
CY2020Q4 us-gaap Guarantee Obligations Current Carrying Value
GuaranteeObligationsCurrentCarryingValue
0
CY2019Q4 us-gaap Guarantee Obligations Current Carrying Value
GuaranteeObligationsCurrentCarryingValue
0
CY2019Q3 us-gaap Capital Units Authorized
CapitalUnitsAuthorized
126270161
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
12.84
CY2019Q3 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
71919982
CY2019Q3 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.0001
CY2019Q3 us-gaap Temporary Equity Par Or Stated Value Per Share
TemporaryEquityParOrStatedValuePerShare
0.0001
CY2020Q3 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
100000000
CY2020Q3 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.0001
CY2020Q3 us-gaap Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
54350179
CY2020Q3 us-gaap Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
0.0001
CY2019Q3 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
2800000
CY2020Q3 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
41600000
CY2020 us-gaap Dividends Cash
DividendsCash
0
CY2020 us-gaap Common Stock Voting Rights
CommonStockVotingRights
Each holder of common stock is entitled to one vote for each share on all matters submitted to a vote of the stockholders, including the election of directors.
CY2020Q4 nktx Common Stock Number Of Voting Rights For Each Share
CommonStockNumberOfVotingRightsForEachShare
1
CY2019 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
2.70
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
1444000
CY2019 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
104000
CY2020 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
2664000
CY2019 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
656000
CY2020Q4 us-gaap Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
5326716
CY2020 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
6748000
CY2019 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
947000
CY2020Q4 us-gaap Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
22200000
CY2020 us-gaap Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
P3Y4M24D
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
0.004
CY2019 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
0.015
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
0.005
CY2019 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
0.023
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
0.748
CY2019 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
0.802
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
0.814
CY2019 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
0.819
CY2020 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period
SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
P10Y
CY2020 us-gaap Dividends Share Based Compensation
DividendsShareBasedCompensation
0
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Payments
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments
0
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
0.00
CY2020 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
0
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
0
CY2020 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
-19186000
CY2019 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
-4426000
CY2020 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
-3929000
CY2019 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
-1959000
CY2020 nktx Income Tax Reconciliation Permanent Items
IncomeTaxReconciliationPermanentItems
749000
CY2019 nktx Income Tax Reconciliation Permanent Items
IncomeTaxReconciliationPermanentItems
245000
CY2020 us-gaap Income Tax Reconciliation Tax Credits Research
IncomeTaxReconciliationTaxCreditsResearch
1264000
CY2019 us-gaap Income Tax Reconciliation Tax Credits Research
IncomeTaxReconciliationTaxCreditsResearch
627000
CY2020 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
231000
CY2019 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
2000
CY2020 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
14965000
CY2019 us-gaap Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
7287000
CY2020 nktx Income Tax Reconciliation Change In Fair Value Of Derivative Liability
IncomeTaxReconciliationChangeInFairValueOfDerivativeLiability
8434000
CY2019 nktx Income Tax Reconciliation Change In Fair Value Of Derivative Liability
IncomeTaxReconciliationChangeInFairValueOfDerivativeLiability
-522000
CY2020Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
17674000
CY2019Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
6897000
CY2020Q4 nktx Deferred Tax Assets Depreciation And Amortization
DeferredTaxAssetsDepreciationAndAmortization
265000
CY2019Q4 nktx Deferred Tax Assets Depreciation And Amortization
DeferredTaxAssetsDepreciationAndAmortization
200000
CY2020Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
3986000
CY2019Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
1316000
CY2019Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
2186000
CY2020Q4 nktx Deferred Tax Liabilities Right Of Use Asset
DeferredTaxLiabilitiesRightOfUseAsset
2382000
CY2019Q4 nktx Deferred Tax Liabilities Right Of Use Asset
DeferredTaxLiabilitiesRightOfUseAsset
2036000
CY2020Q4 nktx Deferred Tax Liabilities Depreciation And Amortization
DeferredTaxLiabilitiesDepreciationAndAmortization
217000
CY2019Q4 nktx Deferred Tax Liabilities Depreciation And Amortization
DeferredTaxLiabilitiesDepreciationAndAmortization
150000
CY2020 us-gaap Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
15000000
CY2019 us-gaap Valuation Allowance Deferred Tax Asset Change In Amount
ValuationAllowanceDeferredTaxAssetChangeInAmount
7300000
CY2020Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
777000
CY2019Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
270000
CY2020 us-gaap Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
0
CY2019 us-gaap Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
0
CY2020Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
983000
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
459000
CY2020Q4 nktx Deferred Tax Assets Lease Liability
DeferredTaxAssetsLeaseLiability
2496000
CY2019Q4 nktx Deferred Tax Assets Lease Liability
DeferredTaxAssetsLeaseLiability
2042000
CY2020Q4 us-gaap Deferred Tax Assets Other
DeferredTaxAssetsOther
891000
CY2019Q4 us-gaap Deferred Tax Assets Other
DeferredTaxAssetsOther
3000
CY2020Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
26295000
CY2019Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
10917000
CY2020Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
23696000
CY2019Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
8731000
CY2020Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
2599000
CY2018Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
73000
CY2020 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
14000
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
5000
CY2020 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
493000
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
192000

Files In Submission

Name View Source Status
0001564590-21-015517-index-headers.html Edgar Link pending
0001564590-21-015517-index.html Edgar Link pending
0001564590-21-015517.txt Edgar Link pending
0001564590-21-015517-xbrl.zip Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
gg2ilmzdaqad000001.jpg Edgar Link pending
gg2ilmzdaqad000002.jpg Edgar Link pending
gg2ilmzdaqad000003.jpg Edgar Link pending
gg2ilmzdaqad000004.jpg Edgar Link pending
gg2ilmzdaqad000005.jpg Edgar Link pending
gg2ilmzdaqad000006.jpg Edgar Link pending
gg2ilmzdaqad000007.jpg Edgar Link pending
gg2ilmzdaqad000008.jpg Edgar Link pending
gg2ilmzdaqad000009.jpg Edgar Link pending
gg2ilmzdaqad000010.jpg Edgar Link pending
gg2ilmzdaqad000011.jpg Edgar Link pending
gg2ilmzdaqad000012.jpg Edgar Link pending
gg2ilmzdaqad000013.jpg Edgar Link pending
nktx-10k_20201231.htm Edgar Link pending
nktx-20201231.xml Edgar Link completed
nktx-20201231.xsd Edgar Link pending
nktx-20201231_cal.xml Edgar Link unprocessable
nktx-20201231_def.xml Edgar Link unprocessable
nktx-20201231_lab.xml Edgar Link unprocessable
nktx-20201231_pre.xml Edgar Link unprocessable
nktx-ex1010d_137.htm Edgar Link pending
nktx-ex231_1678.htm Edgar Link pending
nktx-ex311_6.htm Edgar Link pending
nktx-ex312_7.htm Edgar Link pending
nktx-ex32_8.htm Edgar Link pending
nktx-ex43_989.htm Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R6.htm Edgar Link pending
R7.htm Edgar Link pending
R8.htm Edgar Link pending
R9.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending