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Disclosure - Fair Value Measurement - Summary of Roll Forward of Aggregate Fair Value of Warrant Liability Categorized within Level 3 Inputs (Details) link:presentationLink link:calculationLink link:definitionLink 995665 - Disclosure - Balance Sheet Components - Summary of Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 995675 - Disclosure - Balance Sheet Components - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 995685 - Disclosure - Balance Sheet Components - Summary of Accrued Expense and Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 995695 - Disclosure - Capital Structure - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 995705 - Disclosure - Capital Structure - Schedule of Fair Value of Common Warrants Using the Black-Scholes Option Pricing Model (Details) link:presentationLink link:calculationLink link:definitionLink 995715 - 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Disclosure - Segment Reporting - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 995785 - Disclosure - Segment Reporting - Summary of Research and Development Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 995795 - Disclosure - Segment Reporting - Summary of General and Administrative Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 995805 - Disclosure - Segment Reporting - Summary of Impairment of Long-Lived Assets (Details) link:presentationLink link:calculationLink link:definitionLink 995815 - Disclosure - Segment Reporting - Reconciliation of Segment Loss From Operations to Net Loss (Details) link:presentationLink link:calculationLink link:definitionLink 995825 - Disclosure - Subsequent Events - Additional Infomation (Details) link:presentationLink link:calculationLink link:definitionLink Weighted-Average Grant Date Fair Value, Released Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Vested Proceeds from Sale of Property, Plant, and Equipment Proceeds from Sale of Property, Plant, and Equipment, Total Proceeds from sale of property and equipment Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Preferred stock, shares issued Preferred Stock, Shares Issued Preferred Stock, Shares Issued, Total Increase (Decrease) in Accounts Payable, Total Accounts payable Increase (Decrease) in Accounts Payable Equity [Abstract] Grantee Status [Domain] Entity Current Reporting Status Entity Current Reporting Status Operating expenses: Operating Expenses [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Common stock, shares authorized Common Stock, Shares Authorized Product and Service [Axis] Fair Value by Liability Class [Domain] Document Fiscal Period Focus Document Fiscal Period Focus Entity Shell Company Entity Shell Company Grantee Status [Axis] Cash and Cash Equivalents, at Carrying Value, Ending Balance Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents Cash and Cash Equivalent Fair value liabilities level 1 to level 2 transfer amount. Fair Value Liabilities Level 1 To Level 2 Transfer Amount Fair value liabilities transferred from level 1 to level 2 Common Stock, Shares, Issued, Total Common stock, shares issued Common Stock, Shares, Issued Pre Funded Warrants [Member] Pre funded warrants. Pre-Funded Warrants Asset Class [Domain] Statement [Table] Statement [Table] Restricted Cash, Noncurrent Restricted cash, non-current Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Acquisition of operating lease right-of-use assets Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax, Total Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax Unrealized gains (losses) on available for sale securities Statement [Line Items] Statement [Line Items] Warrant [Member] Common Warrants to Purchase Common Stock Entity Filer Category Entity Filer Category Total liabilities and stockholders' equity Liabilities and Equity Weighted Average Exercise, Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Long-Lived Tangible Asset Long-Lived Tangible Asset [Axis] Liabilities Liabilities [Member] Liabilities member. Proceeds from Issuance of Debt Aggregate proceeds Public offering price Shares Issued, Price Per Share Subsequent Event [Line Items] Stock Options Asset Backed Securities Asset-Backed Securities [Member] Other External Research and Development Costs Other external costs Other external research and development costs. Reconciliation of Segment Loss From Operations to Net Loss Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Property Plant And Equipment [Line Items] Property, Plant and Equipment [Line Items] Measurement Input, Risk Free Interest Rate [Member] Risk-Free Interest Rate Shares, Granted Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Summary of Computation of Basic and Diluted Net Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Property, Plant and Equipment, Net [Abstract] Dividends declared Dividends Payable Earnings Per Share, Basic, Total Earnings Per Share, Basic Net loss per common share, basic Summary of Roll Forward of Aggregate Fair Value of Warrant Liability Categorized within Level 3 Inputs [Table Text Block] Summary of roll forward of aggregate fair value of warrant liability categorized within level 3 inputs table text block. Summary of Roll Forward of Aggregate Fair Value of Warrant Liability Categorized within Level 3 Inputs Shares, Beginning Balance Shares, Ending Balance Stock options outstanding Options to purchase common stock outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Total current liabilities Liabilities, Current Adjustments to reconcile net loss to net cash used in operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Stock Options Repricing Impact In Stock Option Award Stock options repricing impact in stock option award. Stock options repricing impact in stock option award Stockholders' equity Equity, Attributable to Parent [Abstract] Entity Small Business Entity Small Business Personnel Related General and Administrative Expense Personnel related general and administrative expense. Personnel-related expenses (including stock-based compensation) Accumulated deficit Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Accumulated deficit Retained Earnings (Accumulated Deficit) Gross Proceeds from Offering of Common Stock Gross proceeds from offering of common stock. Gross proceeds from offering Increase in number of shares of common stock available under evergreen provision Increase In Number of Shares of Common Stock Available Increase in number of shares of common stock available. Total accrued expenses and other current liabilities Accrued expenses and other current liabilities Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities. Shares, Cancelled Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Warrants and Rights Outstanding, Measurement Input Warrants and rights outstanding, measurement input Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Amendment Flag Amendment Flag Product and Service [Domain] Number of shares called by warrants Number of shares called by warrants Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Operating lease liabilities Increase (Decrease) in Operating Lease Liability Common Stock Common Stock [Member] Weighted Average Exercise Price, Granted Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Issue Date Class of Warrant or Right, Issue Date Class of warrant or right, issue date. Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Schedule Of Available For Sale Securities [Line Items] Debt Securities, Available-for-Sale [Line Items] Stock Issued Underwriting Commissions and Offering Costs Stock issued underwriting commissions and offering costs. Underwriting commissions and offering costs Entity Address, Address Line One Entity Address, Address Line One Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Fair value assets transferred from level 3 Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Axis] Earnings Per Share [Abstract] Income Tax, Policy [Policy Text Block] Income Taxes Covalent 111 [Member] Covalent 111 [Member] COVALENT - 111 Investment Type Investment Type [Axis] Covalent 212 [Member] Covalent 212. COVALENT - 212 Operating lease right-of-use assets Right-of-use asset Operating Lease, Right-of-Use Asset Debt Securities, Available-for-Sale, Unrealized Loss Position, Total Debt Securities, Available-for-Sale, Unrealized Loss Position Fair value of debt securities in Unrealized loss position June 2025 Underwritten Public Offering June 2025 Underwritten Public Offering [Member] June 2025 underwritten public offering. Class of Warrant or Right [Axis] Document Type Document Type Entity Central Index Key Entity Central Index Key Net increase (decrease) in cash, cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Net decrease in cash, cash equivalents, and restricted cash Subsequent Event Type Subsequent Event Type [Domain] Change in fair value of warrant liability Change in fair value Change in fair value of common warrant liability Change in fair value of common warrant liability Change in fair value of warrant liability Anti Dilutive Shares Additional non-dilutive shares Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Balance Sheet Related Disclosures [Abstract] Common stock, par value Common Stock, Par or Stated Value Per Share Underwritting discounts and commissions and offering costs Stock Issued Underwritting Discounts Commissions And Offering Costs Stock issued underwritting discounts commissions and offering costs. Proceeds from Issuance of Warrants Issuance of common warrants Non-cash operating lease expense Operating Lease, Right-of-Use Asset, Periodic Reduction Weighted Average Remaining Contract Term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost Fair Value Debt Securities, Available-for-sale, Total Debt Securities, Available-for-Sale Financial instruments classified as Level 3 Shares, Exercised Exercise of stock options, (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Current Fiscal Year End Date Current Fiscal Year End Date Financial Assets Included Within Cash and Cash Equivalents Financial Assets Included Within Cash And Cash Equivalents [Member] Financial assets included within cash and cash equivalents. Document Quarterly Report Document Quarterly Report Entity Address, State or Province Entity Address, State or Province Unvested restricted awards Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Shares, Beginning balance Shares. Beginning balance Shares, Ending balance Fair value of the warrant liability, balance Financial Liabilities Fair Value Disclosure Financial Liabilities Fair Value Disclosure, Total Fair value of the warrant liability, balance Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Comprehensive Income (Loss), Net of Tax, Attributable to Parent Net and comprehensive loss Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Common Stock, Capital shares reserved for future issuance Reserved shares of common stock to grant stock-based compensation awards Common Stock, Capital Shares Reserved for Future Issuance Class of Warrant or Right [Domain] Summary of Stock-Based Compensation Expense Recorded in Statements of Operations and Allocated Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Interest and Other Income, Total Interest and Other Income Interest and other income, net Subsequent Event Subsequent Event [Member] Other Assets, Noncurrent Other Assets, Noncurrent, Total Other non-current assets Fair Value Measurement Inputs and Valuation Techniques [Table] Financial Assets Included Within Short-term Investments Financial Assets Included Within Short Term Investments Member Financial assets included within short-term investments. Antidilutive Securities Antidilutive Securities [Axis] Accumulated Other Comprehensive Gain (Loss) AOCI Attributable to Parent [Member] Common Warrants [Member] Common warrants. Common Warrants Equity Incentive Plan and Employee Stock Purchase Plan Equity incentive plan and employee stock purchase plan. Equity incentive plan and employee stock purchase plan [Member] Preferred Stock, Value, Issued Preferred stock, $0.0001 par value; 10,000,000 shares authorized as of March 31, 2026 and December 31, 2025; 0 shares issued and outstanding as of March 31, 2026 and December 31, 2025 Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Issued Financial Instrument Financial Instrument [Axis] Current assets: Assets, Current [Abstract] Preclinical activities related expenses Preclinical Activities Related Expenses Preclinical activities related expenses. Level 3 Fair Value, Inputs, Level 3 [Member] At the Market Offering At The Market Offering [Member] At the market offering. Aggregate Offering Price Aggregate offering price. Aggregate offering price Segment Reporting [Abstract] Measurement Input Expected Dividend Yield [Member] Measurement input expected dividend yield. Expected Dividend Yield Fair Value, Assets Measured on Recurring Basis [Table Text Block] Summary of Investments Measured and Recognized at Fair Value Current liabilities: Liabilities, Current [Abstract] Series A Convertible Preferred Shares Series A Convertible Preferred Stock Series A Convertible Preferred Stock [Member] Series A convertible preferred stock. Balance (in shares) Balance (in shares) Shares, Outstanding Cash, cash equivalents, and restricted cash Restricted Cash and Cash Equivalent Restricted Cash and Cash Equivalents, Total Commitments and Contingencies Commitments and contingencies (Note 7) Weighted-Average Grant Date Fair Value, Ending Balance Weighted-Average Grant Date Fair Value, Beginning Balance Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value General and Administrative General and Administrative Expense [Member] Forecast Forecast [Member] Restricted Cash, Current Restricted cash, current Fair Value Measurement Inputs and Valuation Techniques [Abstract] October 2025 Underwritten Public Offering October 2025 Underwritten Public Offering [Member] October 2025 underwritten public offering. Interest and other income, net Interest Income (Expense), Operating Interest Income (Expense), Operating, Total Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Weighted-average number of common shares used to compute basic net loss per common share Scenario [Axis] Issuance of common stock and pre-funded warrants under the public offering (in shares) Stock And Pre-funded Warrants Issued During Period, Shares Stock and pre-funded warrants issued during period, shares. Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Long-Lived Tangible Asset Long-Lived Tangible Asset [Domain] Summary Of Segment Profit and Loss Including Significant Expense [Table Text Block] Summary of segment profit and loss including significant expense. Summary of Segment Profit and Loss Including Significant Expense Subsequent Events [Text Block] Subsequent Events Stock-based compensation expense APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Total stockholders' equity Balance Balance Equity, Attributable to Parent Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Statement of Stockholders' Equity [Abstract] Corporate Notes Corporate Note Securities [Member] Leasehold Improvements Leasehold Improvements [Member] Fair Value Measurement Fair Value Disclosures [Text Block] Warrants and Rights Note Disclosure [Abstract] Summary of Accrued Expense and Other Current Liabilities Schedule of Accrued Liabilities [Table Text Block] Non-cash financing and investing activities: Noncash Investing and Financing Items [Abstract] Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Per share exercise price of eligible stock option awards Share Based Compensation Arrangement By Share Based Payment Award Options Exercise Price Per Share Share based compensation arrangement by share based payment award options exercise price per share. Internal costs: Internal Costs [Abstract] Internal Costs [Abstract] Other assets Increase (Decrease) in Other Operating Assets, Total Other assets Increase (Decrease) in Other Operating Assets Two thousand and twenty one employee stock purchase plan. 2021 Employee Stock Purchase Plan Two Thousand And Twenty One Employee Stock Purchase Plan [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Facilities and Other Allocated Expenses Facilities and other allocated expenses. Facilities and other allocated expenses Number Of Employees Affected Due To Stock Option Repricing Number of employees affected due to stock option repricing. Stock option repricing affected number of employees Class of Warrant or Right, Outstanding Number of Warrants Outstanding Class of Warrant or Right [Table] Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 Fair value liabilities transferred to level 3 Warrant Liability, Policy [Policy Text Block] Warrant liability, policy, policy text block. Warrant Liability Entity Address, City or Town Entity Address, City or Town Warrant Liability, Non-Current Warrant liability, non-current. Warrant liability, non-current Warrant liability revalued Number of Reportable Segments Number of reportable segments Grantee owning more than ten percent of voting power. Grantee Owning More Than 10% of Voting Power Grantee Owning More Than Ten Percent Of Voting Power [Member] Security Exchange Name Security Exchange Name Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Total Total property and equipment, gross Property, Plant and Equipment, Gross Employee Benefits And Share Based Compensation Vested Repriced Options Employee benefits and share based compensation vested repriced options. Incremental stock based compensation expense vested repriced option Personnel Related Research and Development Expense Personnel related research and development expense. Personnel-related expenses (including stock-based compensation) Measurement Input Type [Domain] Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Cash, cash equivalents, and restricted cash at the beginning of the period Cash, cash equivalents, and restricted cash at the end of the period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Statistical Measurement [Domain] Class of Warrant or Right, Exercise Price of Warrants or Rights Warrants exercise price Exercise Price Total current assets Assets, Current Total stock-based compensation expense Share-Based Payment Arrangement, Expense Acquisition of property and equipment in accounts payable and accrued liabilities Noncash or Part Noncash Acquisition, Fixed Assets Acquired Document Period End Date Document Period End Date Title of Individual Title and Position [Axis] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Number of warrants exercised Class of Warrant or Right, Exercised During Period Class of warrant or right, exercised during period. Shares, Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Gain (Loss) on Disposition of Property Plant Equipment Gain (Loss) on Disposition of Property Plant Equipment, Total Gain on sale of property and equipment Gain on sale of property and equipment Restricted stock subject to future vesting [Member] Restricted stock subject to future vesting. Restricted Stock Subject to Future Vesting Statement of Financial Position [Abstract] Restricted Stock Units (RSUs) [Member] Restricted Stock Units Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Reconciliation of cash and cash equivalents, and restricted cash: Class of Stock Class of Stock [Axis] Warrants and Rights Outstanding, Maturity Date Expiration Date Total liabilities Liabilities Financial Instruments Financial Instruments [Domain] Issuance of common stock and pre-funded warrants issuance costs Adjustments To Additional Paid In Capital, Stock And Pre-funded Warrants Issued, Issuance Costs Adjustments to additional paid in capital, stock and pre-funded warrants issued, issuance costs. Restricted Cash, Total Restricted cash Restricted Cash Restricted Stock Restricted Stock [Member] Weighted Average Number of Shares Outstanding, Diluted, Total Weighted Average Number of Shares Outstanding, Diluted Weighted-average number of common shares used to compute diluted net loss per common share Entity File Number Securities Act File Number Unrealized gain (loss) on investments, net Unrealized loss on investments OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Cover [Abstract] Covalent 103 [Member] Covalent 103. COVALENT - 103 Measurement Input Type [Axis] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total prepaid expenses and other current assets Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Shares, Canceled/Forfeited Investments Investments [Domain] Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 Fair value liabilities transferred from level 3 Balance Sheet Components Supplemental Balance Sheet Disclosures [Text Block] Employees and Non-Employees Employees And Non Employees [Member] employees and non-employees Scenario [Domain] Number of Operating Segments Number of operating segments Sale of Stock [Domain] Segment Reporting Disclosure [Text Block] Segment Reporting General and administrative General and Administrative Expense Total general and administrative expenses Total general and administrative expenses Nonvested Restricted Stock Shares Activity [Table Text Block] Summary of Restricted Stock Unit Activity Subsequent Event [Table] Financing Costs Included in Accrued Liabilities and Accounts Payable Financing costs included in accrued liabilities and accounts payable. Financing costs included in accounts payable and accrued liabilities Fair value liabilities level 2 to level 1 transfer amount. Fair Value Liabilities Level 2 To Level 1 Transfer Amount Fair value liabilities transferred from level 2 to level 1 Recent Accounting Pronouncements - Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Placement fee percentage Placement Fee Percentage Placement fee percentage. Depreciation, Total Depreciation expense Depreciation Depreciation Long-term Investments, Total Long-term investments Long-Term Investments Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common stock, shares outstanding Common Stock, Shares, Outstanding Lease liabilities Operating Lease, Liability, Current Operating lease liabilities, current Completed Underwritten Public Offering [Member] Completed underwritten public offering member. Completed Underwritten Public Offering Document Transition Report Document Transition Report Total operating expenses Operating Expenses Accrued Liabilities, Current [Abstract] Research and development Research and Development Expense Total research and development expenses Total research and development expenses Asset Impairment Charges Asset Impairment Charges, Total Impairment of long-lived assets Impairment of property and equipment Clinical Research Organization Expenses Clinical research organization expenses. Clinical research organization expenses Statement of Cash Flows [Abstract] Stock Issued During Period, Value, New Issues Issuances of common stock under at the market equity offering program Increase in number of shares of common stock available under evergreen provision Increase In Number Of Common Stock Capital Shares Reserved For Future Issuance Increase in number of common shares reserved for future issuance. Summary of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Capital Structure Equity [Text Block] Net Loss Per Share Earnings Per Share [Text Block] Net loss attributable to common stockholders, basic and diluted Net loss Warrants and Rights Outstanding, Term Expected term (years) Warrant Liability Warrant Liability [Member] Warrant liability member. Assets Assets [Abstract] Construction in Progress Construction in Progress [Member] Prepaid expenses and other current assets Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets, Total Increase (Decrease) in Prepaid Expense and Other Assets Document Fiscal Year Focus Document Fiscal Year Focus Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Accounts Payable, Current, Total Accounts payable Accounts Payable, Current Research and Development Research and Development Expense [Member] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Summary of Prepaid Expenses and Other Current Assets Two thousand and twenty equity incentive plan member. Two Thousand And Twenty Equity Incentive Plan [Member] 2020 Equity Incentive Plan Fair Value Disclosures [Abstract] Commitments and Contingencies Disclosure [Abstract] Share-Based Payment Arrangement [Abstract] Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Total unrecognized stock-based compensation expense Manufacturing of Clinical and Research Material Costs Manufacturing of clinical and research material costs. Expenses related to manufacturing of clinical and research material Sale of Stock [Axis] Fair value asset level 2 to level 1 transfer amount Fair Value Asset Level 2 To Level 1 Transfer Amount Fair value assets transferred from level 2 to level 1 Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash provided by investing activities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Fair value assets transferred to level 3 Title of 12(b) Security Title of 12(b) Security Schedule of Segment Reporting Information, by Segment [Table] Issuance of common stock and pre-funded warrants under the public offering Stock And Pre-funded Warrants Issued During Period, Value Stock and pre-funded warrants issued during period, value. Weighted Average Exercise Price, Cancelled Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted-Average Grant Date Fair Value, Forfeited Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Canceled/Forfeited Money Market Funds Money Market Funds [Member] Debt Securities, Available-for-Sale, Allowance for Credit Loss, Total Debt Securities, Available-for-Sale, Allowance for Credit Loss, Beginning Balance Debt Securities, Available-for-Sale, Allowance for Credit Loss, Ending Balance Debt Securities, Available-for-Sale, Allowance for Credit Loss Allowance for credit Loss Class of Warrant or Right [Line Items] Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Summary of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Weighted Average Exercise Price, Beginning Balance Weighted Average Exercise Price, Ending Balance Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Fair Value, Recurring and Nonrecurring [Table] Additional Paid-In Capital Additional Paid-in Capital [Member] Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Accrued expenses and other current liabilities Two thousand and twenty one equity incentive plan. 2021 Equity Incentive Plan Two Thousand And Twenty One Equity Incentive Plan [Member] Income Statement Location Statement of Income Location, Balance [Axis] Trading Symbol Trading Symbol Non Rule 10b 51 Arr Modified Flag Non Rule 10b 51 Arr Modified Flag. 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