$SERA
Sera Prognostics Inc Stock $sera

$sera Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000153496922000034 Filed on March 29, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$26.00K	$82.00K	$6.000K
YoY Change	333.33%	228.0%
Cost Of Revenue	$14.00K	$37.00K	$3.000K
YoY Change	366.67%	236.36%
Gross Profit	$12.00K	$45.00K	$3.000K
YoY Change	300.0%	221.43%
Gross Profit Margin	46.15%	54.88%	50.0%
Selling, General & Admin	$9.484M	$24.42M	$2.665M
YoY Change	255.87%	139.35%
% of Gross Profit	79033.33%	54268.89%	88833.33%
Research & Development	$3.075M	$11.02M	$2.090M
YoY Change	47.13%	41.6%
% of Gross Profit	25625.0%	24486.67%	69666.67%
Depreciation & Amortization	$145.0K	$700.0K	$202.0K
YoY Change	-28.22%	-22.22%
% of Gross Profit	1208.33%	1555.56%	6733.33%
Operating Expenses	$12.56M	$35.48M	$4.757M
YoY Change	164.01%	97.14%
Operating Profit	-$12.55M	-$35.40M	-$4.754M
YoY Change	163.93%	96.96%
Interest Expense	$90.00K	-$601.0K	-$554.0K
YoY Change	-116.25%	-66.56%
% of Operating Profit
Other Income/Expense, Net	-$27.00K	$1.132M	-$67.00K
YoY Change	-59.7%	-3078.95%
Pretax Income	-$12.48M	-$35.01M	-$5.375M
YoY Change	132.26%	76.39%
Income Tax		$0.00
% Of Pretax Income
Net Earnings	-$12.48M	-$35.01M	-$5.375M
YoY Change	132.26%	76.39%
Net Earnings / Revenue	-48015.38%	-42693.9%	-89583.33%
Basic Earnings Per Share		-$2.33
Diluted Earnings Per Share	-$409.2K	-$2.33	-$176.2K
COMMON SHARES
Basic Shares Outstanding		15.00M shares
Diluted Shares Outstanding		15.00M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$105.1M	$105.1M
YoY Change		676.73%
Cash & Equivalents	$58.93M	$58.93M	$13.53M
Short-Term Investments	$46.18M	$46.18M
Other Short-Term Assets	$1.993M	$1.993M
YoY Change		906.57%
Inventory
Prepaid Expenses
Receivables	$27.00K	$27.00K	$2.000K
Other Receivables	$3.116M	$3.116M	$0.00
Total Short-Term Assets	$110.3M	$110.3M	$13.73M
YoY Change	702.82%	702.82%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.773M	$1.773M	$965.0K
YoY Change	83.73%	83.73%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$34.85M	$34.85M
YoY Change
Other Assets	$157.0K	$157.0K	$98.00K
YoY Change	60.2%	60.2%
Total Long-Term Assets	$36.78M	$36.78M	$1.063M
YoY Change	3359.83%	3359.83%
TOTAL ASSETS
Total Short-Term Assets	$110.3M	$110.3M	$13.73M
Total Long-Term Assets	$36.78M	$36.78M	$1.063M
Total Assets	$147.0M	$147.0M	$14.80M
YoY Change	893.71%	893.71%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.197M	$1.197M	$441.0K
YoY Change	171.43%	171.43%
Accrued Expenses	$2.958M	$2.958M
YoY Change		24.18%
Deferred Revenue	$3.116M		$0.00
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$74.00K	$74.00K
YoY Change		-99.09%
Total Short-Term Liabilities	$8.411M	$8.411M	$11.24M
YoY Change	-25.18%	-25.18%
LONG-TERM LIABILITIES
Long-Term Debt	$54.00K	$54.00K
YoY Change		-94.31%
Other Long-Term Liabilities	$0.00	$0.00
YoY Change		-100.0%
Total Long-Term Liabilities	$54.00K	$54.00K
YoY Change		-95.04%
TOTAL LIABILITIES
Total Short-Term Liabilities	$8.411M	$8.411M	$11.24M
Total Long-Term Liabilities	$54.00K	$54.00K
Total Liabilities	$8.465M	$8.465M	$12.33M
YoY Change	-31.35%	-31.35%
SHAREHOLDERS EQUITY
Retained Earnings	-$166.5M		-$131.5M
YoY Change	26.63%
Common Stock	$3.000K		$0.00
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$138.6M	$138.6M	-$125.6M
YoY Change
Total Liabilities & Shareholders Equity	$147.0M	$147.0M	$14.80M
YoY Change	893.71%	893.71%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	-$12.48M	-$35.01M	-$5.375M
YoY Change	132.26%	76.39%
Depreciation, Depletion And Amortization	$145.0K	$700.0K	$202.0K
YoY Change	-28.22%	-22.22%
Cash From Operating Activities	-$9.152M	-$31.64M	-$4.185M
YoY Change	118.69%	87.55%
INVESTING ACTIVITIES
Capital Expenditures	-$749.0K	$1.304M	-$44.00K
YoY Change	1602.27%	775.17%
Acquisitions
YoY Change
Other Investing Activities	-$13.68M	-$81.26M	$0.00
YoY Change
Cash From Investing Activities	-$14.43M	-$82.56M	-$44.00K
YoY Change	32700.0%	55308.72%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	37.00K	$159.6M	-920.0K
YoY Change	-104.02%	1642.29%
NET CHANGE
Cash From Operating Activities	-9.152M	-$31.64M	-4.185M
Cash From Investing Activities	-14.43M	-$82.56M	-44.00K
Cash From Financing Activities	37.00K	$159.6M	-920.0K
Net Change In Cash	-23.55M	$45.40M	-5.149M
YoY Change	357.31%	-677.82%
FREE CASH FLOW
Cash From Operating Activities	-$9.152M	-$31.64M	-$4.185M
Capital Expenditures	-$749.0K	$1.304M	-$44.00K
Free Cash Flow	-$8.403M	-$32.94M	-$4.141M
YoY Change	102.92%	93.57%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001534969
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021Q3	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	0.48
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-40606
CY2021	dei	Entity Registrant Name EntityRegistrantName	SERA PROGNOSTICS, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	26-1911522
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.004
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	2749 East Parleys Way
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 200
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Salt Lake City
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	UT
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	84109
CY2021	dei	City Area Code CityAreaCode	801
CY2021	dei	Local Phone Number LocalPhoneNumber	990-0520
CY2021	dei	Security12b Title Security12bTitle	Class A Common Stock, $0.0001 par value per share
CY2021	dei	Trading Symbol TradingSymbol	SERA
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	true
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	true
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CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	0	USD
CY2021	dei	Auditor Firm AuditorFirmId	42
CY2021	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2021	dei	Auditor Location AuditorLocation	Salt Lake City, Utah
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CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	98000	USD
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CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2020	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	0	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	592000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	176000	USD
CY2021	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1050000	USD
CY2021	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	4494000	USD
CY2020	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	2667000	USD
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	3100000	USD
CY2020	us-gaap	Repayments Of Debt RepaymentsOfDebt	0	USD
CY2021	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	70000	USD
CY2020	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	85000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	159594000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	9160000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	45399000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-7857000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13533000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	21390000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	58932000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13533000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	1188000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	250000	USD
CY2021	sera	Purchases Of Property And Equipment Included In Accounts Payable And Accrued Liabilities PurchasesOfPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities	154000	USD
CY2020	sera	Purchases Of Property And Equipment Included In Accounts Payable And Accrued Liabilities PurchasesOfPropertyAndEquipmentIncludedInAccountsPayableAndAccruedLiabilities	33000	USD
CY2021	sera	Prepaid And Deferred Offering Costs Reclassified To Senior Convertible Preferred Stock PrepaidAndDeferredOfferingCostsReclassifiedToSeniorConvertiblePreferredStock	26000	USD
CY2020	sera	Prepaid And Deferred Offering Costs Reclassified To Senior Convertible Preferred Stock PrepaidAndDeferredOfferingCostsReclassifiedToSeniorConvertiblePreferredStock	0	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-166500000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	58900000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	81000000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:12pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the financial statements in conformity with U.S. GAAP requires the Company’s management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. On an ongoing basis, the Company evaluates its estimates, including those related to the determination of fair value of its stock options, fair value of its common and preferred stock warrants, fair value of its marketable securities, valuation of deferred tax assets resulting from net operating losses, and useful lives of property and equipment. The Company bases these estimates on historical and anticipated results, trends, and various other assumptions that the Company believes are reasonable under the circumstances, including assumptions as to future events. Actual results could differ materially from those estimates.</span></div><div style="margin-top:12pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The COVID-19 pandemic and the rapidly evolving actions of governments, private sector participants and the public in an effort to contain the spread of the COVID-19 virus and address its impacts have intensified and have had significant direct and indirect effects on businesses and commerce. The extent to which the COVID-19 pandemic may impact the Company’s business, financial condition, cash flows, and results of operations, in particular, will depend on future developments that are highly uncertain, many of which are outside the Company’s control. Such developments include the availability and effectiveness of actions taken to contain or treat COVID-19, the ultimate geographic spread and duration of the pandemic, the extent and duration of a resurgence of the COVID-19 virus and variant strains thereof, new information concerning the severity of the COVID-19 virus, the effectiveness and intensity of measures to contain the COVID-19 virus and the economic impact of the pandemic and the reactions to it. Such developments, among others, depending on their nature, duration, and intensity, could have a significant adverse effect on the Company’s business, financial condition, cash flows, and results of operations.</span></div><div style="margin-top:12pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">There were no significant estimates contained in the preparation of the Company’s financial statements or impacts to the Company’s financial statements for the year ended December 31, 2021 that were a direct result of the COVID-19 pandemic. The Company is not aware of any specific event or circumstance that would require an update to its estimates, judgments and assumptions or a revision of the carrying value of the Company’s assets or liabilities as of the date of the financial statements.</span></div>
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Concentration of credit risk</span></div><div style="margin-top:12pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and marketable securities. The Company maintains bank deposits in accounts at federally insured financial institutions and these deposits may exceed federally insured limits. The Company is exposed to credit risk in the event of default by the financial institution holding its cash to the extent recorded in the balance sheet. The Company has not experienced any losses on its deposits of cash. The Company's cash equivalents consist of money market funds and investment grade commercial paper. Marketable securities consist of investments in U.S. government securities, U.S. federal agency securities, and investment grade corporate securities. The Company's investment portfolio in corporate debt securities is highly liquid and diversified among individual issuers. The Company did not experience any credit losses related to its investment portfolio for the year ended December 31, 2021.</span></div>
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2021Q4	sera	Cash And Cash Equivalents Debt Securities Available For Sale Amortized Cost CashAndCashEquivalentsDebtSecuritiesAvailableForSaleAmortizedCost	140146000	USD
CY2021Q4	sera	Cash And Cash Equivalents Debt Securities Available For Sale Accumulated Gross Unrealized Gain Before Tax CashAndCashEquivalentsDebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainBeforeTax	0	USD
CY2021Q4	sera	Cash And Cash Equivalents Debt Securities Available For Sale Accumulated Gross Unrealized Loss Before Tax CashAndCashEquivalentsDebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedLossBeforeTax	183000	USD
CY2021Q4	sera	Cash And Cash Equivalents Debt Securities Available For Sale Fair Value CashAndCashEquivalentsDebtSecuritiesAvailableForSaleFairValue	139963000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	USD
CY2021Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	46211000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	46183000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	35001000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	34848000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	81212000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	81031000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	7740000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	6327000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	5967000	USD
CY2021	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	-48000	USD
CY2020	us-gaap	Other Nonoperating Gains Losses OtherNonoperatingGainsLosses	0	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	5362000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1773000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	965000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	700000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	900000	USD
CY2021Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	2498000	USD
CY2020Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	996000	USD
CY2021Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	460000	USD
CY2020Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	290000	USD
CY2021Q4	sera	Liability Bank Loan Final Payment Fee Current LiabilityBankLoanFinalPaymentFeeCurrent	0	USD
CY2020Q4	sera	Liability Bank Loan Final Payment Fee Current LiabilityBankLoanFinalPaymentFeeCurrent	100000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.012
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	927000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	191000	USD
CY2021Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	3885000	USD
CY2020Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	1577000	USD
CY2021	us-gaap	Interest Income Other InterestIncomeOther	145000	USD
CY2020	us-gaap	Interest Income Other InterestIncomeOther	42000	USD
CY2021	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-15000	USD
CY2020	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-80000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	1050000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1132000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-38000	USD
CY2021Q4	sera	Number Of Common Stock Classes Authorized NumberOfCommonStockClassesAuthorized	2	common_stock_class
CY2021Q4	sera	Common Stock Conversion Ratio CommonStockConversionRatio	1
CY2021Q4	sera	Deferred Offering Costs Non Current DeferredOfferingCostsNonCurrent	3100000	USD
CY2020Q4	sera	Deferred Offering Costs Non Current DeferredOfferingCostsNonCurrent	26000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4096722	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.64
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	13328000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	2756613	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	7.79
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	63	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	207.90
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	41906	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	4.75
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	524240	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	1.13
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6287126	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	4.36
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y9M18D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	20095000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	5958748	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	4.23
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P7Y8M12D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	19593000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	2793555	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	2.17
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P6Y2M12D
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	13297000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	5.64
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.93
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3300000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	100000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	2200000	USD
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	600000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.595
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.671
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.528
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.621
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.008
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.016
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Dividend ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividend	0	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Expected Dividend ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageExpectedDividend	0	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3130000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	726000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	12200000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y1M6D
CY2021Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	2788484	shares
CY2020Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	2019590	shares
CY2020Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	2019590	shares
CY2021	sera	Class Of Warrant Or Right Issued ClassOfWarrantOrRightIssued	722223	shares
CY2021	sera	Class Of Warrant Or Right Conversion Of Outstanding Preferred Stock Warrants To Common Stock Warrants ClassOfWarrantOrRightConversionOfOutstandingPreferredStockWarrantsToCommonStockWarrants	81543	shares
CY2021	sera	Class Of Warrant Or Right Exercised ClassOfWarrantOrRightExercised	22372	shares
CY2021	sera	Class Of Warrant Or Right Cancelled For Net Exercise ClassOfWarrantOrRightCancelledForNetExercise	12500	shares
CY2021Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	2788484	shares
CY2021Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	0	USD
CY2021Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	0	USD
CY2020Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	81543	shares
CY2020Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	474000	USD
CY2021	sera	Conversion Of Preferred Stock Warrants To Common Stock Warrants Adjustment ConversionOfPreferredStockWarrantsToCommonStockWarrantsAdjustment	-929000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2021	sera	Percentage Of Increase In Base Rent Annually PercentageOfIncreaseInBaseRentAnnually	0.03
CY2020	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	400000	USD
CY2021	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	400000	USD
CY2021Q4	us-gaap	Deferred Rent Credit DeferredRentCredit	100000	USD
CY2020Q4	us-gaap	Deferred Rent Credit DeferredRentCredit	300000	USD
CY2021Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	604000	USD
CY2021Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	0	USD
CY2021Q4	sera	Operating Leases Future Minimum Payments Due In Year Three And Thereafter OperatingLeasesFutureMinimumPaymentsDueInYearThreeAndThereafter	0	USD
CY2021Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	604000	USD
CY2021Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	80000	USD
CY2021Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	55000	USD
CY2021Q4	sera	Capital Leases Future Minimum Payments Due In Year Three And Thereafter CapitalLeasesFutureMinimumPaymentsDueInYearThreeAndThereafter	0	USD
CY2021Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	135000	USD
CY2021Q4	sera	Total Operating And Capital Leases Future Minimum Payments Due In Year One TotalOperatingAndCapitalLeasesFutureMinimumPaymentsDueInYearOne	684000	USD
CY2021Q4	sera	Total Operating And Capital Leases Future Minimum Payments Due In Year Two TotalOperatingAndCapitalLeasesFutureMinimumPaymentsDueInYearTwo	55000	USD
CY2021Q4	sera	Total Operating And Capital Leases Future Minimum Payments Due In Year Three And Thereafter TotalOperatingAndCapitalLeasesFutureMinimumPaymentsDueInYearThreeAndThereafter	0	USD
CY2021Q4	sera	Total Operating And Capital Leases Future Minimum Payments Due TotalOperatingAndCapitalLeasesFutureMinimumPaymentsDue	739000	USD
CY2020Q4	sera	Indemnification Liability IndemnificationLiability	0	USD
CY2021Q4	sera	Indemnification Liability IndemnificationLiability	0	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	8049000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	3658000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1239000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1498000	USD
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	9288000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	5156000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7351000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4167000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.2100
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	-440000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.0126
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	-304000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.0153
CY2021	sera	Effective Income Tax Rate Reconciliation Equity Based Expenses Amount EffectiveIncomeTaxRateReconciliationEquityBasedExpensesAmount	187000	USD
CY2021	sera	Effective Income Tax Rate Reconciliation Equity Based Expenses Percent EffectiveIncomeTaxRateReconciliationEquityBasedExpensesPercent	0.0053
CY2020	sera	Effective Income Tax Rate Reconciliation Equity Based Expenses Amount EffectiveIncomeTaxRateReconciliationEquityBasedExpensesAmount	-136000	USD
CY2020	sera	Effective Income Tax Rate Reconciliation Equity Based Expenses Percent EffectiveIncomeTaxRateReconciliationEquityBasedExpensesPercent	-0.0068
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	998000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0285
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1065000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.0536
CY2021	sera	Effective Income Tax Rate Reconciliation State Net Operating Loss Carryforward True Up Amount EffectiveIncomeTaxRateReconciliationStateNetOperatingLossCarryforwardTrueUpAmount	-72000	USD
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CY2020	sera	Effective Income Tax Rate Reconciliation State Net Operating Loss Carryforward True Up Amount EffectiveIncomeTaxRateReconciliationStateNetOperatingLossCarryforwardTrueUpAmount	49000	USD
CY2020	sera	Effective Income Tax Rate Reconciliation State Net Operating Loss Carryforward True Up Percent EffectiveIncomeTaxRateReconciliationStateNetOperatingLossCarryforwardTrueUpPercent	0.0025
CY2021	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-16000	USD
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CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2021	sera	Effective Income Tax Rate Reconciliation Ppp Loan Forgiveness Amount EffectiveIncomeTaxRateReconciliationPPPLoanForgivenessAmount	221000	USD
CY2021	sera	Effective Income Tax Rate Reconciliation Ppp Loan Forgiveness Percent EffectiveIncomeTaxRateReconciliationPPPLoanForgivenessPercent	0.0063
CY2020	sera	Effective Income Tax Rate Reconciliation Ppp Loan Forgiveness Amount EffectiveIncomeTaxRateReconciliationPPPLoanForgivenessAmount	0	USD
CY2020	sera	Effective Income Tax Rate Reconciliation Ppp Loan Forgiveness Percent EffectiveIncomeTaxRateReconciliationPPPLoanForgivenessPercent	0
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	179000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.0051
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-294000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.0148
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-9288000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.2652
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-5156000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.2598
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	39423000	USD
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CY2021Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	2472000	USD
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CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	621000	USD
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CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	220000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	5000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2000	USD
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CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	33908000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	43153000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	33864000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	44000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	44000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	43200000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	33900000	USD
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	9300000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	5200000	USD
CY2021Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	89600000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1354000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1152000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	294000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	202000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1648000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1354000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-19848000	USD
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1555745	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1555745	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-12.76
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-12.76
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	9075610	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	22420474	shares

Files In Submission

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Show.js	Edgar Link	pending

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$SERA
Sera Prognostics Inc Stock $sera

2021 Q4 Form 10-K Financial Statement

#000153496922000034 Filed on March 29, 2022

Income Statement

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$SERA Sera Prognostics Inc Stock $sera

2021 Q4 Form 10-K Financial Statement

#000153496922000034 Filed on March 29, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SERA
Sera Prognostics Inc Stock $sera