$CSTL
Castle Biosciences Inc Stock $cstl

$cstl Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000144736223000038 Filed on February 28, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$42.04M	$38.34M	$137.0M
YoY Change	56.55%	53.11%	45.65%
Cost Of Revenue	$10.18M	$9.520M	$32.01M
YoY Change	71.3%	107.09%	102.31%
Gross Profit	$31.86M	$28.82M	$105.0M
YoY Change	52.36%	40.97%	34.2%
Gross Profit Margin	75.78%	75.17%	76.64%
Selling, General & Admin	$46.76M	$38.13M	$143.0M
YoY Change	53.55%	52.93%	64.87%
% of Gross Profit	146.8%	132.33%	136.15%
Research & Development	$14.39M	$11.23M	$44.90M
YoY Change	33.75%	19.79%	51.46%
% of Gross Profit	45.18%	38.96%	42.75%
Depreciation & Amortization	$2.892M	$2.841M	$10.54M
YoY Change	34.45%	95.8%	209.45%
% of Gross Profit	9.08%	9.86%	10.04%
Operating Expenses	$61.16M	$51.95M	$187.9M
YoY Change	48.38%	45.87%	61.45%
Operating Profit	-$31.52M	-$23.13M	-$72.86M
YoY Change	28.58%	52.48%	81.78%
Interest Expense	$4.000K	$2.571M	$17.00K
YoY Change	33.33%	15968.75%	1600.0%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$29.19M	-$20.56M	-$68.90M
YoY Change	19.2%	35.67%	72.21%
Income Tax	$14.00K	$57.00K	-$1.766M
% Of Pretax Income
Net Earnings	-$29.20M	-$20.62M	-$67.14M
YoY Change	18.6%	220.65%	114.55%
Net Earnings / Revenue	-69.47%	-53.78%	-48.99%
Basic Earnings Per Share	-$1.10		-$2.58
Diluted Earnings Per Share	-$1.10	-$0.78	-$2.58
COMMON SHARES
Basic Shares Outstanding	26.58M shares	26.35M shares	26.05M shares
Diluted Shares Outstanding	26.61M shares		26.05M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$232.0M	$258.6M	$258.6M
YoY Change	-24.92%	-21.55%	-21.54%
Cash & Equivalents	$114.8M	$122.9M	$122.9M
Short-Term Investments	$117.2M	$135.7M	$135.7M
Other Short-Term Assets	$6.797M	$6.207M	$6.207M
YoY Change	31.62%	29.12%	29.12%
Inventory	$4.520M	$3.980M	$3.980M
Prepaid Expenses
Receivables	$27.73M	$23.48M	$23.48M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$271.1M	$292.3M	$292.3M
YoY Change	-19.42%	-17.37%	-17.37%
LONG-TERM ASSETS
Property, Plant & Equipment	$18.25M	$14.32M	$26.50M
YoY Change	94.5%	50.67%	56.93%
Goodwill	$10.70M	$10.69M
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$792.0K	$1.110M	$1.110M
YoY Change	-70.66%	-35.28%	-35.28%
Total Long-Term Assets	$155.8M	$155.0M	$155.0M
YoY Change	44.27%	42.46%	42.46%
TOTAL ASSETS
Total Short-Term Assets	$271.1M	$292.3M	$292.3M
Total Long-Term Assets	$155.8M	$155.0M	$155.0M
Total Assets	$426.9M	$447.3M	$447.3M
YoY Change	-3.95%	-3.3%	-3.3%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$9.961M	$4.731M	$4.731M
YoY Change	200.57%	85.82%	85.82%
Accrued Expenses	$17.18M	$29.43M	$29.43M
YoY Change	30.31%	42.99%	42.99%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$148.0K	$148.0K
YoY Change		40.95%	40.95%
Total Short-Term Liabilities	$30.14M	$36.13M	$36.13M
YoY Change	-23.73%	45.17%	45.17%
LONG-TERM LIABILITIES
Long-Term Debt	$55.00K	$90.00K	$90.00K
YoY Change	-45.0%	-27.42%	-27.42%
Other Long-Term Liabilities	$55.00K	$90.00K	$11.53M
YoY Change	-45.0%	-27.42%	-54.21%
Total Long-Term Liabilities	$55.00K	$90.00K	$11.62M
YoY Change	-45.0%	-27.42%	-54.08%
TOTAL LIABILITIES
Total Short-Term Liabilities	$30.14M	$36.13M	$36.13M
Total Long-Term Liabilities	$55.00K	$90.00K	$11.62M
Total Liabilities	$41.74M	$48.18M	$48.18M
YoY Change	-11.36%	-5.22%	-5.22%
SHAREHOLDERS EQUITY
Retained Earnings	-$190.1M	-$160.9M
YoY Change	60.57%	71.6%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$385.1M	$399.2M	$399.2M
YoY Change
Total Liabilities & Shareholders Equity	$426.9M	$447.3M	$447.3M
YoY Change	-3.95%	-3.3%	-3.3%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	-$29.20M	-$20.62M	-$67.14M
YoY Change	18.6%	220.65%	114.55%
Depreciation, Depletion And Amortization	$2.892M	$2.841M	$10.54M
YoY Change	34.45%	95.8%	209.45%
Cash From Operating Activities	-$25.44M	-$6.000M	-$41.66M
YoY Change	18.71%	115.75%	119.43%
INVESTING ACTIVITIES
Capital Expenditures	$3.338M	$1.787M	$5.632M
YoY Change	730.35%	-300.11%	61.7%
Acquisitions			$26.97M
YoY Change
Other Investing Activities	$19.92M	-$2.695M	-$160.9M
YoY Change		-91.02%	154.71%
Cash From Investing Activities	$16.58M	-$4.482M	-$166.5M
YoY Change	-4225.37%	-85.49%	149.85%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$728.0K	-750.0K	$1.515M
YoY Change	-40.13%	-695.24%	-72.05%
NET CHANGE
Cash From Operating Activities	-$25.44M	-6.000M	-$41.66M
Cash From Investing Activities	$16.58M	-4.482M	-$166.5M
Cash From Financing Activities	$728.0K	-750.0K	$1.515M
Net Change In Cash	-$8.127M	-11.23M	-$206.7M
YoY Change	-60.58%	-66.52%	157.65%
FREE CASH FLOW
Cash From Operating Activities	-$25.44M	-$6.000M	-$41.66M
Capital Expenditures	$3.338M	$1.787M	$5.632M
Free Cash Flow	-$28.78M	-$7.787M	-$47.29M
YoY Change	31.81%	312.45%	110.48%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001447362
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
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CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-38984
CY2022	dei	Entity Registrant Name EntityRegistrantName	CASTLE BIOSCIENCES, INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	77-0701774
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	505 S. Friendswood Drive
CY2022	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 401
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Friendswood
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77546
CY2022	dei	City Area Code CityAreaCode	866
CY2022	dei	Local Phone Number LocalPhoneNumber	788-9007
CY2022	dei	Security12b Title Security12bTitle	Common Stock, $0.001 par value per share
CY2022	dei	Trading Symbol TradingSymbol	CSTL
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
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CY2022	dei	Entity Shell Company EntityShellCompany	false
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CY2022	dei	Auditor Name AuditorName	KPMG LLP
CY2022	dei	Auditor Location AuditorLocation	San Diego, CA
CY2022	dei	Auditor Firm AuditorFirmId	185
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CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
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CY2021	us-gaap	Net Income Loss NetIncomeLoss	-31292000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	411740000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	36321000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	833000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-1688000	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2352000	usd
CY2022	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	17111000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-381000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-67138000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	399150000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-67138000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-31292000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	10543000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	3407000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	36321000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	21740000	usd
CY2022	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-18287000	usd
CY2021	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1877000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8736000	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	1368000	usd
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	0	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-158000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6218000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4631000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1224000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-617000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1680000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-327000	usd
CY2022	cstl	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	-991000	usd
CY2021	cstl	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	-931000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-618000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	180000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	582000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-182000	usd
CY2022	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-608000	usd
CY2021	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-852000	usd
CY2022	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	8495000	usd
CY2021	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	6208000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	0	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-8350000	usd
CY2022	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	-963000	usd
CY2021	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	2286000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	0	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-276000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-41655000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-18983000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5632000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3483000	usd
CY2022	cstl	Payments To Acquire Asset Acquisitions Net Of Cash Acquired PaymentsToAcquireAssetAcquisitionsNetOfCashAcquired	-547000	usd
CY2021	cstl	Payments To Acquire Asset Acquisitions Net Of Cash Acquired PaymentsToAcquireAssetAcquisitionsNetOfCashAcquired	63184000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	26966000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	195000	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	10000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	134689000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-166545000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-66657000	usd
CY2022	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	336000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	833000	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4234000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1688000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	781000	usd
CY2022	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	2492000	usd
CY2021	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	2312000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	122000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	8000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1515000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	5421000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-206685000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-80219000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	329633000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	409852000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	122948000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	329633000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	16000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	1000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	120000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1396000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	33000	usd
CY2022	us-gaap	Stock Issued1 StockIssued1	17111000	usd
CY2021	us-gaap	Stock Issued1 StockIssued1	0	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6075000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2892000	usd
CY2022Q4	us-gaap	Asset Acquisition Contingent Consideration Liability AssetAcquisitionContingentConsiderationLiability	0	usd
CY2021Q4	us-gaap	Asset Acquisition Contingent Consideration Liability AssetAcquisitionContingentConsiderationLiability	18287000	usd
CY2022	cstl	Property And Equipment Acquired With Tenant Improvement Allowance PropertyAndEquipmentAcquiredWithTenantImprovementAllowance	51000	usd
CY2021	cstl	Property And Equipment Acquired With Tenant Improvement Allowance PropertyAndEquipmentAcquiredWithTenantImprovementAllowance	54000	usd
CY2022Q4	cstl	Asset Acquisition Post Closing Purchase Price Adjustment Receivable AssetAcquisitionPostClosingPurchasePriceAdjustmentReceivable	0	usd
CY2021Q4	cstl	Asset Acquisition Post Closing Purchase Price Adjustment Receivable AssetAcquisitionPostClosingPurchasePriceAdjustmentReceivable	519000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-160900000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	135700000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	122900000	usd
CY2022	us-gaap	Use Of Estimates UseOfEstimates	The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Significant items subject to such estimates include revenue recognition, the valuation of stock-based compensation, assessing future tax exposure and the realization of deferred tax assets, the useful lives and recoverability of long-lived assets, the goodwill impairment test, the valuation of acquired intangible assets, the valuation of contingent consideration and other contingent liabilities. We base these estimates on historical and anticipated results, trends, and various other assumptions that we believe are reasonable under the circumstances, including assumptions as to future events. These estimates form the basis for making judgments about the carrying values of assets and liabilities and recorded revenues and expenses that are not readily apparent from other sources. Actual results could differ from those estimates and assumptions.
CY2022	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Cash deposits at financial institutions may exceed the amount of insurance provided by the FDIC. Management believes that we are not exposed to significant credit risk on our cash deposits due to the financial position of the institutions in which deposits are held. We have not experienced any losses on our cash or cash equivalents.
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2022Q4	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	18209000	usd
CY2021Q4	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	12071000	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	3525000	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2036000	usd
CY2020Q4	cstl	Deferred Payroll Taxes Cares Act DeferredPayrollTaxesCARESAct	551000	usd
CY2022Q4	cstl	Deferred Payroll Taxes Cares Act DeferredPayrollTaxesCARESAct	276000	usd
CY2021Q4	cstl	Deferred Payroll Taxes Cares Act DeferredPayrollTaxesCARESAct	276000	usd
CY2022	cstl	Contract With Customer Customer Payment Terms ContractWithCustomerCustomerPaymentTerms	P30D
CY2022	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	-1987000	usd
CY2021	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	3324000	usd
CY2020Q2	cstl	Centers For Medicare And Medicaid Services Accelerated And Advanced Payment Program Payment Received CentersForMedicareAndMedicaidServicesAcceleratedAndAdvancedPaymentProgramPaymentReceived	8300000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	137039000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	94085000	usd
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5317000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3521000	shares
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	136058000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	381000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	135677000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	0	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
CY2021	cstl	Debt Securities Available For Sale Impairment Loss DebtSecuritiesAvailableForSaleImpairmentLoss	0	usd
CY2022	cstl	Debt Securities Available For Sale Impairment Loss DebtSecuritiesAvailableForSaleImpairmentLoss	0	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	22163000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	12543000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	7848000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	3042000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	14315000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	9501000	usd
CY2022	us-gaap	Depreciation Depreciation	2278000	usd
CY2021	us-gaap	Depreciation Depreciation	1448000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	0	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	10692000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	10692000	usd
CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2021Q4	us-gaap	Goodwill Goodwill	0	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	125880000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	10224000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	115656000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	90880000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1958000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	88922000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	9013000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	9038000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	9013000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	9004000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	8901000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	70687000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	115656000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8300000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000	usd
CY2022Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2125000	usd
CY2021Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1905000	usd
CY2022Q4	cstl	Accrued Clinical Studies Current AccruedClinicalStudiesCurrent	1822000	usd
CY2021Q4	cstl	Accrued Clinical Studies Current AccruedClinicalStudiesCurrent	1655000	usd
CY2022Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	900000	usd
CY2021Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	760000	usd
CY2022Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	37000	usd
CY2021Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	695000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	378000	usd
CY2021Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	663000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	5262000	usd
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	5678000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	12181000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	7383000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	232000	usd
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	229000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1777000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1179000	usd
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	148000	usd
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	105000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	11533000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	6900000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	90000	usd
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	124000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	1997000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	1450000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	129000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	8000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	16000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	477000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	29000	usd
CY2022	us-gaap	Lease Cost LeaseCost	2619000	usd
CY2021	us-gaap	Lease Cost LeaseCost	1488000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	371000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	187000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	1283000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	1145000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	16000	usd
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	122000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	8000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y4M24D
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CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1838000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	153000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2122000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	72000	usd
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CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2219000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	12921000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	23294000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	255000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	9984000	usd
CY2022Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	17000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	13310000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	238000	usd
CY2022Q4	cstl	Lessee Operating Lease Lease Not Yet Commenced Undiscounted Amount LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount	700000	usd
CY2022	cstl	Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleListNotDisclosedFlag	contingent consideration
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	18287000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	0	usd
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CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	336000	usd
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CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y6M
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CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P7Y
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	11713000	usd
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CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y
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CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	27191000	usd
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CY2022	cstl	Effective Income Tax Rate Reconciliation Nondeductible Expense Officers Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOfficersCompensationAmount	1326000	usd
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CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	26000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-157000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1766000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	6738000	usd
CY2021Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	0	usd
CY2022Q4	cstl	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	3549000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4489000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2202000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	5665000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	3670000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	445000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	240000	usd
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CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	17774000	usd

Files In Submission

Name	View Source	Status
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$CSTL
Castle Biosciences Inc Stock $cstl

2023 Q1 Form 10-K Financial Statement

#000144736223000038 Filed on February 28, 2023

Income Statement

Balance Sheet

Cashflow Statement

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$CSTL Castle Biosciences Inc Stock $cstl

2023 Q1 Form 10-K Financial Statement

#000144736223000038 Filed on February 28, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CSTL
Castle Biosciences Inc Stock $cstl