2020 Form 10-K Financial Statement

#000156459021009854 Filed on March 01, 2021

View on sec.gov

Income Statement

Concept 2020 2019 Q4 2019
Revenue $0.00 $0.00 $0.00
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin $64.40M $18.06M $79.58M
YoY Change -19.08% -7.67% 14.26%
% of Gross Profit
Research & Development $244.7M $61.64M $216.1M
YoY Change 13.21% -1.0% 29.05%
% of Gross Profit
Depreciation & Amortization $8.330M $1.900M $7.070M
YoY Change 17.82% 28.38% 89.54%
% of Gross Profit
Operating Expenses $309.1M $79.70M $295.7M
YoY Change 4.52% -2.59% 24.7%
Operating Profit -$309.1M -$295.7M
YoY Change 4.52% 24.7%
Interest Expense $2.450M $1.220M $4.720M
YoY Change -48.09% -30.68% -25.9%
% of Operating Profit
Other Income/Expense, Net $2.447M $4.717M
YoY Change -48.12% -25.93%
Pretax Income -$306.6M -$78.48M -$291.0M
YoY Change 5.38% -1.97% 26.1%
Income Tax $15.00K $10.00K $12.00K
% Of Pretax Income
Net Earnings -$306.6M -$78.50M -$291.0M
YoY Change 5.38% -1.89% 26.13%
Net Earnings / Revenue
Basic Earnings Per Share
Diluted Earnings Per Share -$4.145M -$1.360M -$5.671M
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding

Balance Sheet

Concept 2020 2019 Q4 2019
SHORT-TERM ASSETS
Cash & Short-Term Investments $500.7M $259.1M $259.1M
YoY Change 93.25% -16.31% -16.31%
Cash & Equivalents $200.4M $74.32M $74.30M
Short-Term Investments $300.3M $184.8M $184.8M
Other Short-Term Assets $21.40M $13.90M $13.90M
YoY Change 53.96% 16.81% 16.81%
Inventory
Prepaid Expenses
Receivables $1.300M $0.00
Other Receivables $0.00
Total Short-Term Assets $523.3M $273.0M $273.0M
YoY Change 91.68% -15.09% -15.09%
LONG-TERM ASSETS
Property, Plant & Equipment $62.80M $54.18M $68.20M
YoY Change -7.92% -21.0% -0.58%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets $2.000M $567.0K $1.800M
YoY Change 11.11% -1.22% 0.0%
Total Long-Term Assets $64.80M $69.95M $69.90M
YoY Change -7.3% -0.57% -0.57%
TOTAL ASSETS
Total Short-Term Assets $523.3M $273.0M $273.0M
Total Long-Term Assets $64.80M $69.95M $69.90M
Total Assets $588.1M $342.9M $342.9M
YoY Change 71.51% -12.48% -12.48%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $7.100M $7.963M $8.000M
YoY Change -11.25% 114.12% 116.22%
Accrued Expenses $42.10M $3.900M $28.50M
YoY Change 47.72% -30.69% -4.36%
Deferred Revenue
YoY Change
Short-Term Debt $0.00 $0.00 $0.00
YoY Change
Long-Term Debt Due $300.0K $300.0K $300.0K
YoY Change 0.0%
Total Short-Term Liabilities $82.90M $36.74M $36.70M
YoY Change 125.89% -8.09% -8.25%
LONG-TERM LIABILITIES
Long-Term Debt $100.0K $200.0K $200.0K
YoY Change -50.0%
Other Long-Term Liabilities $42.70M $1.282M $15.20M
YoY Change 180.92% -90.14% 16.92%
Total Long-Term Liabilities $42.80M $1.282M $15.40M
YoY Change 177.92% -90.14% 18.46%
TOTAL LIABILITIES
Total Short-Term Liabilities $82.90M $36.74M $36.70M
Total Long-Term Liabilities $42.80M $1.282M $15.40M
Total Liabilities $125.8M $52.16M $52.20M
YoY Change 141.0% -1.55% -1.51%
SHAREHOLDERS EQUITY
Retained Earnings -$818.0M
YoY Change 55.11%
Common Stock $1.109B
YoY Change 27.92%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $462.3M $290.8M $290.8M
YoY Change
Total Liabilities & Shareholders Equity $588.1M $342.9M $342.9M
YoY Change 71.51% -12.48% -12.48%

Cashflow Statement

Concept 2020 2019 Q4 2019
OPERATING ACTIVITIES
Net Income -$306.6M -$78.50M -$291.0M
YoY Change 5.38% -1.89% 26.13%
Depreciation, Depletion And Amortization $8.330M $1.900M $7.070M
YoY Change 17.82% 28.38% 89.54%
Cash From Operating Activities -$180.8M -$58.69M -$235.6M
YoY Change -23.29% 2.21% 31.07%
INVESTING ACTIVITIES
Capital Expenditures $4.513M -$2.710M $5.733M
YoY Change -21.28% -35.01% -84.04%
Acquisitions
YoY Change
Other Investing Activities -$116.2M $3.840M $66.19M
YoY Change -275.59% -92.36% -141.28%
Cash From Investing Activities -$120.7M $1.130M $60.46M
YoY Change -299.69% -97.55% -130.8%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net $69.19M $47.73M
YoY Change 44.96% 0.3%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 427.6M 37.45M 188.8M
YoY Change 126.49% 522.09% -47.2%
NET CHANGE
Cash From Operating Activities -180.8M -58.69M -235.6M
Cash From Investing Activities -120.7M 1.130M 60.46M
Cash From Financing Activities 427.6M 37.45M 188.8M
Net Change In Cash 126.1M -20.11M 13.62M
YoY Change 825.82% 277.3% -173.52%
FREE CASH FLOW
Cash From Operating Activities -$180.8M -$58.69M -$235.6M
Capital Expenditures $4.513M -$2.710M $5.733M
Free Cash Flow -$185.3M -$55.98M -$241.4M
YoY Change -23.24% 5.13% 11.9%

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CY2018 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
35925000
CY2020 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
0
CY2019 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
161000
CY2018 us-gaap Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
0
CY2020 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-120728000
CY2019 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
60459000
CY2018 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-196289000
CY2020 atra Proceeds From Issuance Of Pre Funded Warrants In Underwritten Public Offering
ProceedsFromIssuanceOfPreFundedWarrantsInUnderwrittenPublicOffering
353780000
CY2019 atra Proceeds From Issuance Of Pre Funded Warrants In Underwritten Public Offering
ProceedsFromIssuanceOfPreFundedWarrantsInUnderwrittenPublicOffering
140888000
CY2018 atra Proceeds From Issuance Of Pre Funded Warrants In Underwritten Public Offering
ProceedsFromIssuanceOfPreFundedWarrantsInUnderwrittenPublicOffering
293290000
CY2020 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
69189000
CY2019 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
47729000
CY2018 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
47586000
CY2020 us-gaap Proceeds From Stock Plans
ProceedsFromStockPlans
6680000
CY2019 us-gaap Proceeds From Stock Plans
ProceedsFromStockPlans
7350000
CY2018 us-gaap Proceeds From Stock Plans
ProceedsFromStockPlans
24691000
CY2020 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
1521000
CY2019 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
6695000
CY2018 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
7503000
CY2020 us-gaap Finance Lease Principal Payments
FinanceLeasePrincipalPayments
389000
CY2019 us-gaap Finance Lease Principal Payments
FinanceLeasePrincipalPayments
486000
CY2018 us-gaap Finance Lease Principal Payments
FinanceLeasePrincipalPayments
528000
CY2020 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-165000
CY2019 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
0
CY2018 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
0
CY2020 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
427574000
CY2019 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
188786000
CY2018 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
357536000
CY2020 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
126087000
CY2019 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
13619000
CY2018 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
-18525000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
75711000
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
62092000
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
80617000
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
201798000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
75711000
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
62092000
CY2020 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
326000
CY2019 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
276000
CY2018 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
1579000
CY2020 atra Non Cash Investing And Financing Activities Accrued Costs Related To Underwritten Public Offering
NonCashInvestingAndFinancingActivitiesAccruedCostsRelatedToUnderwrittenPublicOffering
192000
CY2019 atra Non Cash Investing And Financing Activities Accrued Costs Related To Underwritten Public Offering
NonCashInvestingAndFinancingActivitiesAccruedCostsRelatedToUnderwrittenPublicOffering
172000
CY2018 atra Non Cash Investing And Financing Activities Accrued Costs Related To Underwritten Public Offering
NonCashInvestingAndFinancingActivitiesAccruedCostsRelatedToUnderwrittenPublicOffering
0
CY2020 atra Proceeds From Issuance Of Common Stock Through At The Market Offering Facilities Not Yet Received
ProceedsFromIssuanceOfCommonStockThroughAtTheMarketOfferingFacilitiesNotYetReceived
0
CY2019 atra Proceeds From Issuance Of Common Stock Through At The Market Offering Facilities Not Yet Received
ProceedsFromIssuanceOfCommonStockThroughAtTheMarketOfferingFacilitiesNotYetReceived
1185000
CY2018 atra Proceeds From Issuance Of Common Stock Through At The Market Offering Facilities Not Yet Received
ProceedsFromIssuanceOfCommonStockThroughAtTheMarketOfferingFacilitiesNotYetReceived
0
CY2020 us-gaap Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
0
CY2019 us-gaap Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
0
CY2018 us-gaap Capital Lease Obligations Incurred
CapitalLeaseObligationsIncurred
441000
CY2020 atra Property Plant And Equipment Acquired Under Capital Lease
PropertyPlantAndEquipmentAcquiredUnderCapitalLease
0
CY2019 atra Property Plant And Equipment Acquired Under Capital Lease
PropertyPlantAndEquipmentAcquiredUnderCapitalLease
0
CY2018 atra Property Plant And Equipment Acquired Under Capital Lease
PropertyPlantAndEquipmentAcquiredUnderCapitalLease
191000
CY2020 us-gaap Settlement Of Asset Retirement Obligations Through Noncash Payments Amount
SettlementOfAssetRetirementObligationsThroughNoncashPaymentsAmount
0
CY2019 us-gaap Settlement Of Asset Retirement Obligations Through Noncash Payments Amount
SettlementOfAssetRetirementObligationsThroughNoncashPaymentsAmount
0
CY2018 us-gaap Settlement Of Asset Retirement Obligations Through Noncash Payments Amount
SettlementOfAssetRetirementObligationsThroughNoncashPaymentsAmount
88000
CY2020 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
0
CY2019 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
0
CY2018 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
77000
CY2020 us-gaap Interest Paid Net
InterestPaidNet
62000
CY2019 us-gaap Interest Paid Net
InterestPaidNet
50000
CY2018 us-gaap Interest Paid Net
InterestPaidNet
240000
CY2020 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
10000
CY2019 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
0
CY2018 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
0
CY2020 dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
DE
CY2020 us-gaap Number Of Reportable Segments
NumberOfReportableSegments
1
CY2020 us-gaap Number Of Operating Segments
NumberOfOperatingSegments
1
CY2019 atra Operating Lease Cost Including Short Term Lease
OperatingLeaseCostIncludingShortTermLease
3348000
CY2020 us-gaap Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
389000
CY2019 us-gaap Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
324000
CY2019 us-gaap Finance Lease Interest Expense
FinanceLeaseInterestExpense
56000
CY2020 us-gaap Use Of Estimates
UseOfEstimates
<p style="margin-bottom:0pt;margin-top:18pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Use of Estimates </p> <p style="margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;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, assumptions and judgments that affect the amounts reported in the financial statements and accompanying notes. Significant estimates relied upon in preparing these financial statements include estimates related to revenue recognition, clinical study and other accruals, stock-based compensation expense and income taxes. Actual results could differ materially from those estimates. </p>
CY2020 us-gaap Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
<p style="margin-bottom:0pt;margin-top:18pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Concentration of Credit Risk and Other Uncertainties </p> <p style="margin-bottom:0pt;margin-top:6pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">We place cash and cash equivalents in the custody of financial institutions that management believes are of high credit quality, the amount of which at times, may be in excess of the amount insured by the Federal Deposit Insurance Corporation. We also make short-term investments in money market funds; U.S. Treasury, government agency and corporate debt obligations; commercial paper; certificates of deposit; and asset-backed securities, which can be subject to certain credit risk. However, we mitigate the risks by investing in high-grade instruments, limiting our exposure to any one issuer and monitoring the ongoing creditworthiness of the financial institutions and issuers.</p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">O</span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">ne research, development and license agreement </span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">entered into in 2020 </span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">accounted for </span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">all of the</span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> deferred revenue as of December 31, </span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">2020</span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">. For the year ended December 31, </span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">2020</span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">, </span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">we</span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> did not recognize any revenue from this agreement.</span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </span><span style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Our accounts receivable balance consists of amounts due pursuant to this agreement. We believe the receivable balance is fully collectible.</span></p> <p style="margin-bottom:0pt;margin-top:12pt;text-indent:4.54%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">We are subject to certain risks and uncertainties and believe that changes in any of the following areas could have a material adverse effect on future financial position or results of operations: our ability to obtain future financing; regulatory approval and market acceptance of, and reimbursement for, our product candidates, if approved by applicable regulatory authorities; performance of third-party clinical research organizations and manufacturers upon which we rely; development of sales channels; protection of our intellectual property; litigation or claims against us based on intellectual property, patent, product, regulatory or other factors; and our ability to attract and retain employees necessary to support our growth. </p>
CY2019Q1 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
14300000
CY2019Q1 us-gaap Operating Lease Liability
OperatingLeaseLiability
15300000
CY2020Q4 atra Operating Lease Obligation
OperatingLeaseObligation
10300000
CY2020 atra Cash And Cash Equivalents Maturity Period
CashAndCashEquivalentsMaturityPeriod
P90D
CY2020 atra Investment Maturity Period
InvestmentMaturityPeriod
P90D
CY2020 us-gaap Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
0
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
0
CY2020 us-gaap Description Of Defined Contribution Pension And Other Postretirement Plans
DescriptionOfDefinedContributionPensionAndOtherPostretirementPlans
401(k)
CY2019 us-gaap Defined Contribution Plan Employer Matching Contribution Percent Of Match
DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
0.50
CY2019 us-gaap Defined Contribution Plan Employer Matching Contribution Percent
DefinedContributionPlanEmployerMatchingContributionPercent
0.06
CY2020 atra Defined Contribution Plan Contributions By Employer
DefinedContributionPlanContributionsByEmployer
2100000
CY2019 atra Defined Contribution Plan Contributions By Employer
DefinedContributionPlanContributionsByEmployer
1600000
CY2020Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
3016000
CY2019Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
3900000
CY2020Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
1730000
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
1312000
CY2020Q4 us-gaap Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
255000
CY2019Q4 us-gaap Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
269000
CY2020Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
1056000
CY2019Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
252000
CY2020Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
6057000
CY2019Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
5733000
CY2020 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
10727142
CY2019 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
8865464
CY2018 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
7690433
CY2020Q4 us-gaap Available For Sale Securities Debt Maturities Within One Year Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
434828000
CY2020Q4 us-gaap Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
435023000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities Within One Year Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
214085000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
214199000
CY2020Q4 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
64221000
CY2020Q4 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
64322000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
42993000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
43100000
CY2020Q4 us-gaap Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis
AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
499049000
CY2020Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
499345000
CY2020Q4 us-gaap Interest Receivable
InterestReceivable
700000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis
AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
257078000
CY2019Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
257299000
CY2020Q4 us-gaap Finance Lease Liability Payments Due Next Twelve Months
FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
282000
CY2019Q4 us-gaap Interest Receivable
InterestReceivable
900000
CY2020 atra Write Off Of Accrued Interest Receivable
WriteOffOfAccruedInterestReceivable
0
CY2019 atra Write Off Of Accrued Interest Receivable
WriteOffOfAccruedInterestReceivable
0
CY2018 atra Write Off Of Accrued Interest Receivable
WriteOffOfAccruedInterestReceivable
0
CY2020Q4 us-gaap Restricted Cash
RestrictedCash
1400000
CY2019Q4 us-gaap Restricted Cash
RestrictedCash
1400000
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
200404000
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
74317000
CY2020Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
194000
CY2019Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
194000
CY2020Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
1200000
CY2019Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
1200000
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
201798000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
75711000
CY2020Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
70193000
CY2019Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
65854000
CY2020Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
19676000
CY2019Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
11678000
CY2020Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
50517000
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
54176000
CY2020 us-gaap Depreciation And Amortization
DepreciationAndAmortization
8300000
CY2019 us-gaap Depreciation And Amortization
DepreciationAndAmortization
7100000
CY2018 us-gaap Depreciation And Amortization
DepreciationAndAmortization
3700000
CY2020Q4 atra Due To Licensors Current And Noncurrent
DueToLicensorsCurrentAndNoncurrent
0
CY2019Q4 atra Due To Licensors Current And Noncurrent
DueToLicensorsCurrentAndNoncurrent
0
CY2020Q4 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P3Y
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
2835000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
3177000
CY2019 us-gaap Short Term Lease Cost
ShortTermLeaseCost
770000
CY2020 atra Operating Lease Cost Including Short Term Lease
OperatingLeaseCostIncludingShortTermLease
4007000
CY2020 us-gaap Finance Lease Interest Expense
FinanceLeaseInterestExpense
60000
CY2020 atra Finance Lease Cost
FinanceLeaseCost
449000
CY2019 atra Finance Lease Cost
FinanceLeaseCost
380000
CY2020Q4 us-gaap Finance Lease Liability Payments Due Year Two
FinanceLeaseLiabilityPaymentsDueYearTwo
130000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
2696000
CY2020Q4 us-gaap Finance Lease Liability Payments Due Year Three
FinanceLeaseLiabilityPaymentsDueYearThree
29000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
2593000
CY2020Q4 us-gaap Finance Lease Liability Payments Due Year Four
FinanceLeaseLiabilityPaymentsDueYearFour
0
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
2587000
CY2020Q4 us-gaap Finance Lease Liability Payments Due Year Five
FinanceLeaseLiabilityPaymentsDueYearFive
0
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
9300000
CY2020Q4 us-gaap Finance Lease Liability Payments Due After Year Five
FinanceLeaseLiabilityPaymentsDueAfterYearFive
0
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
23188000
CY2020Q4 us-gaap Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
441000
CY2020Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
8417000
CY2020Q4 us-gaap Finance Lease Liability Undiscounted Excess Amount
FinanceLeaseLiabilityUndiscountedExcessAmount
37000
CY2020Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
14771000
CY2020Q4 us-gaap Finance Lease Liability
FinanceLeaseLiability
404000
CY2020Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
1730000
CY2020Q4 us-gaap Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
255000
CY2020Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
13041000
CY2020Q4 us-gaap Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
149000
CY2020Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
14771000
CY2020Q4 us-gaap Finance Lease Liability
FinanceLeaseLiability
404000
CY2020 us-gaap Operating Lease Cost
OperatingLeaseCost
3020000
CY2019 us-gaap Operating Lease Cost
OperatingLeaseCost
2578000
CY2020 us-gaap Short Term Lease Cost
ShortTermLeaseCost
987000
CY2018 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
2200000
CY2020 us-gaap Operating Lease Payments
OperatingLeasePayments
2878000
CY2019 us-gaap Operating Lease Payments
OperatingLeasePayments
2346000
CY2020 us-gaap Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
62000
CY2019 us-gaap Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
50000
CY2020 us-gaap Finance Lease Principal Payments
FinanceLeasePrincipalPayments
389000
CY2019 us-gaap Finance Lease Principal Payments
FinanceLeasePrincipalPayments
486000
CY2020 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
0
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
838000
CY2020 us-gaap Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
281000
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
323000
CY2020 atra Non Cash Increase To Operating Lease Assets Due To Remeasurement Of Lease Liabilities
NonCashIncreaseToOperatingLeaseAssetsDueToRemeasurementOfLeaseLiabilities
639000
CY2019 atra Non Cash Increase To Operating Lease Assets Due To Remeasurement Of Lease Liabilities
NonCashIncreaseToOperatingLeaseAssetsDueToRemeasurementOfLeaseLiabilities
0
CY2020Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
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