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Warrants issued expiry period Warrants And Rights Outstanding Maturity Period Warrants and rights outstanding maturity period. Income Tax Expense (Benefit), Total Income Tax Expense (Benefit) Income tax expense Income tax expense Activities in available-for-sale investments: Debt Securities, Available-for-Sale [Abstract] Trading Symbol Trading Symbol Total stockholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Loss Contingency Accrual, Ending Balance Loss Contingency Accrual, Beginning Balance Contingent liabilities Loss Contingency Accrual Vehicles and equipment. Vehicles and equipment [Member] Long-Lived Tangible Asset Long-Lived Tangible Asset [Axis] Gross proceeds Gross Proceeds Gross proceeds. Stock-based compensation Share-Based Payment Arrangement [Policy Text Block] Debt instrument, conversion price Debt Instrument, Convertible, Conversion Price Sale of Stock, Number of Shares Issued in Transaction Sale of Stock, Number of Shares Issued in Transaction Deferred revenue from collaborations Increase (Decrease) in Deferred Revenue Schedule Of Property Plant And Equipment [Table] Property, Plant and Equipment [Table] Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total Share based payment unamortized share based payment expenses Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Unamortized compensation cost Share based compensation arrangement by share based payment award options replacement options from exchange. Share Based Compensation Arrangement By Share Based Payment Award Options Replacement options from Exchange Number of options, Replacement options from Exchange Summary of Stock Based Compensation Expense Was Allocated Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Organization Nature of Operations [Text Block] Measurement Input Type [Axis] Geographical [Axis] Aggregate Intrinsic Value, Options vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Available-for-sale securities, Gross Unrealized Loss Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Available-for-sale securities, Gross Unrealized Loss Leases [Abstract] Rule 10b5-1 Arrangement Modified Rule 10b 51 Arr Modified Flag Rule 10b 51 Arr Modified Flag. Lab equipment [Member] Equipment [Member] Accounting for government grants. Accounting for Government Grants [Policy Text Block] Accounting for Government Grants Use of estimates Use of Estimates, Policy [Policy Text Block] Exercisable at June 30, 2024 Pre funded warrant shares exercisable. Pre Funded Warrant Shares Exercisable Interest and other income, net Other Operating Income (Expense), Net Cash equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Vesting of early exercised options from existing exercises Vesting Of Early Exercised Common Stock Options From Existing Exercises Value Vesting of early exercised common stock options from existing exercises value. Measurement Input, Price Volatility [Member] Volatility [Member] Investments Marketable Securities, Policy [Policy Text Block] Security Exchange Name Security Exchange Name Fair Value by Liability Class Fair Value by Liability Class [Domain] Total operating expenses Operating Expenses Consideration received in the period Deferred Revenue Consideration Received Deferred revenue consideration received. Measurement Input, Risk Free Interest Rate [Member] Risk-free Interest Rate [Member] Share based payments weighted-average grant date fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value Proceeds from Sale, Maturity and Collection of Short-Term Investments, Total Proceeds from Sale, Maturity and Collection of Short-Term Investments Maturities of short-term investments Accrued payables Accrued Payables Current Accrued payables current. Disclosure - License and collaboration agreements - Additional Information (Detail) [Abstract] Disclosure License And Collaboration Agreements Additional Information Detail [Abstract] Disclosure License And Collaboration Agreements Additional Information Detail Abstract Long-Lived Tangible Asset Long-Lived Tangible Asset [Domain] Class of Stock Class of Stock [Axis] 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 Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Fair value Fair Value Disclosures [Text Block] Research and Development Arrangement, Contract to Perform for Others, Type Research and Development Arrangement, Contract to Perform for Others, Type [Domain] Temporary equity shares converted into permanent equity Conversion of Stock, Shares Converted Options tendered Maximum [Member] Maximum [Member] Total liabilities and stockholders’ equity Liabilities and Equity Conversion Of Stock Voting Shares [Member] Conversion Of Stock Voting Shares [Member] Conversion of stock voting shares. Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Property, Plant and Equipment, Impairment [Policy Text Block] Impairment of Right of Use Assets Net income (loss) per share - diluted Net income (loss) per share, diluted Earnings Per Share, Diluted, Total Earnings Per Share, Diluted Leasehold improvements [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Grant by the National Institute of Allergies and Infectious Diseases (NIAID) for Research to Target Coronaviruses Grant by the National Institute of Allergies and Infectious Diseases (NIAID) for Research to Target Coronaviruses [Member] Grant by the National Institute of Allergies and Infectious Diseases (NIAID) for research to target coronaviruses. Entity Ex Transition Period Entity Ex Transition Period Total liabilities Liabilities Common stock voting right Common Stock, Voting Rights Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Warrants exercised Warrants Exercised Warrants exercised. Total current assets Assets, Current Net Cash Provided by (Used in) Investing Activities Net cash and cash equivalents (used in) provided by investing activities Liability for early exercised stock options Liability For Early Exercised Stocks Options Current Liability for early exercised stock options current. Liability for early exercised stock options Stock issued during the period new issues shares Issuance of common stock in connection with Follow-on Offering, net of offering costs, shares Issuance of common stock from RSU vesting, Shares Mark to market adjustment for available-for-sale investments Market To Market Adjustments For Available For Sale Investments Market to market adjustments for available for sale investments. Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Common stock vesting period Entity Filer Category Entity Filer Category Summary of Estimated Useful Life of Asset Schedule Of Estimated Useful Life Of Asset Table [Text Block] Schedule of estimated useful life of asset. Property, Plant and Equipment [Abstract] Deferred revenue from collaborations Deferred Revenue From Collaboration Non Current Deferred revenue from collaborations noncurrent. Deferred revenue from collaborations, net of current portion Upfront payment received Upfront Payment Received Upfront payment received. Current Fiscal Year End Date Current Fiscal Year End Date Number of replacement options granted in connection with exchange offer. Number Of Replacement Options Granted In Connection With Exchange Offer Number of replacement options granted in connection with exchange offer Property and equipment Property, Plant and Equipment, Policy [Policy Text Block] Share-based Payment Arrangement, Noncash Expense, Total Stock-based compensation including ESPP Share-Based Payment Arrangement, Noncash Expense Aggregate Intrinsic Value - Options outstanding Aggregate Intrinsic Value - Options outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Related Party Related and Nonrelated Parties [Axis] Conversion of Stock, Name Conversion of Stock, Name [Domain] Non-Rule 10b5-1 Arrangement Modified Non Rule 10b 51 Arr Modified Flag Non Rule 10b 51 Arr Modified Flag. Entity Registrant Name Entity Registrant Name Weighted-average remaining lease term (years) Finance Lease, Weighted Average Remaining Lease Term Government Assistance, Income, Increase (Decrease), Statement of Income or Comprehensive Income [Extensible Enumeration] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Net income (loss) per share Earnings Per Share [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Risks and uncertainties Risk And Uncertainity Policy [Text Block] Risk and uncertainity [Policy text block]. Government Assistance, Income, Increase (Decrease), Total Government grants / contract awarded Government Assistance, Income, Increase (Decrease) Weighted average common stock outstanding Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Weighted average shares of common stock, basic Lease liabilities net of current portion Finance lease liabilities, net of current portion Finance Lease, Liability, Noncurrent Number of shares of common stock authorized Common Stock, Shares Authorized Common Stock, Shares Authorized Summary of common warrant liability. Summary of Common Warrant Liability [Table Text Block] Summary of Common Warrant Liability Convertible notes issued for purchasing license Notes Issued Proceeds from Issuance of Common Stock Common Stock Deferred revenue from collaborations as of June 30 Deferred revenue from collaborations as of January 1 Deferred Revenue From Collaborations Deferred revenue from collaborations. Interest on lease liabilities Finance Lease, Interest Expense Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Additional upfront payment received Additional Upfront Payment Received Additional upfront payment received. Aggregate intrinsic value, Vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Issuance of common stock upon exercise of pre-funded warrants. Issuance of common stock upon exercise of pre-funded warrants Issuance of common stock upon exercise of pre-funded warrants, shares Summary of Debt Securities Available for Sale Maturity Debt Securities Available For Sale Maturity Table [Text Block] Debt securities available for sale maturity. Underwriting discounts and commissions Underwriting Discounts And Commissions Underwriting discounts and commissions. Weighted average exercise price Options vested and expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Weighted average exercise price Granted Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Financial Instrument [Axis] Non-voting Common Stock [Member] Non Voting Common Stocks [Member] Non-voting common stocks. Weighted- Average Remaining Contractual Term, Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Net loss per share Earnings Per Share, Policy [Policy Text Block] Number of options exchanged in connection with exchange offer. Number Of Options Exchanged In Connection With Exchange Offer Number of options cancelled in connection with exchange offer General and Administrative [Member] General and Administrative Expense [Member] Share-Based Payment Arrangement [Abstract] Income taxes. Income Taxes [Line Items] Proceeds from Issuance of Warrants Common Warrants Net proceeds Ending liability as of June 30, 2024 Fair value of common warrant liability Fair value of common warrant liability Beginning liability as of January 1, 2024 Available-for-sale, Estimated Fair Value, Total investments Available-for-sale securities, Estimated Fair Value Debt Securities, Available-for-Sale Available for sale securities Accounting Policies [Abstract] Unaudited interim financial information Unaudited Interim Financial Information Policy [Text Block] Unaudited interim financial information. Income Tax Disclosure [Abstract] Non-refundable payment Long-Term Purchase Commitment, Amount Stockholders’ equity: Equity, Attributable to Parent [Abstract] Common warrant liability shares outstanding. Common Warrant Liability Shares Outstanding Beginning balance, shares Ending balance, shares Payments for royalties and milestones. Payments for royalties and milestones Supplemental disclosures of noncash financing and investing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Restricted cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Statement [Table] Statement [Table] Segment information Segment Reporting, Policy [Policy Text Block] Summary of Property and Equipment Property, Plant and Equipment [Table Text Block] Weighted- Average Remaining Contractual Term, Options vested and expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Other assets Increase (Decrease) in Other Current Assets Other assets Number of shares of preferred stock authorized Preferred Stock, Shares Authorized Preferred Stock, Shares Authorized Changes in fair value of the warrants Change in fair value of derivative liability upon exercise of warrants Fair Value Adjustment of Warrants Entity File Number Securities Act File Number Revenue from Contract with Customer [Abstract] Earnings Per Share [Abstract] Emory license agreement [Member] Emory License Agreement [Member] Emory license agreement. Research plan expiry period Research And Development Arrangement Contract To Perform For Others Expiry Period Research and development arrangement contract to perform for others expiry period. Statement of Financial Position [Abstract] IPO IPO [Member] Loss from operations Operating Income (Loss) Shares Issued, Price Per Share Purchase price per share Excercise price of stock per share Common Stock Exercise Price Per Share Common stock in exercise price per share. Entity Shell Company Entity Shell Company Purchase Obligation, Total Non-cancellable purchase commitments Purchase Obligation Increase decrease in right of use assets. Increase Decrease In Right Of Use Assets Right of use assets Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Summary of Assumptions Used to Determine the fair value at Issuance and Reporting Date of Common Warrants Granted Entity Tax Identification Number Entity Tax Identification Number ASSETS Assets [Abstract] Class of Warrant or Right [Domain] Deferred revenue from customers, current Deferred Revenue from Customers Current Deferred revenue from customers current. Schedule Of Additional Information Related To The Leases [Abstract] Schedule of additional information related to the leases Entity Current Reporting Status Entity Current Reporting Status Expense or accruals recognized related to royalties Expense Or Accruals Recognized Related To Royalties Expense or accruals recognized related to royalties. Amortization of right-of-use assets Finance Lease Amortization Of Right Of Use Assets Finance lease amortization of right of use assets. Weighted- Average Remaining Contractual Term, Options vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Property and equipment Property, Plant and Equipment Disclosure [Text Block] Significant accounting policies and estimates Policy text block Significant accounting policies and estimates Policy text block Significant accounting policies and estimates Subsequent Events [Abstract] Increase (Decrease) in Contract with Customer, Liability Deferred revenue from customers Financing Sources [Table] Financing Sources [Table] Financing Sources Table Eligible options tendered for one option value. Eligible Options Tendered For One Option Value Eligible options tendered for replacement option, value Geographical [Domain] Document Fiscal Year Focus Document Fiscal Year Focus Cash, Cash Equivalents, and Short-term Investments, Total Unrestricted cash, Cash equivalent and investment Cash, Cash Equivalents, and Short-Term Investments Certificates of deposit [Member] Certificates of Deposit [Member] Preferred Stock, $0.0001 par value; 10,000,000 shares authorized as of June 30, 2024 and December 31, 2023, respectively; no shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively. Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Preferred Stock, Value, Issued Schedule of Deferred Revenue from Collaborative Arrangements Disclosure of Deferred Revenue from Collaborations [Table Text Block] Disclosure of deferred revenue from collaborations. Issuance of common stock value in connection with private investment in public equity net of offering costs. Issuance of common stock value in connection with private investment in public equity net of offering costs Issuance of common stock in connection with PIPE offering, net of offering costs Finance lease cost: Finance Lease Costs [Abstract] Finance lease costs. City Area Code City Area Code Total current liabilities Liabilities, Current Expense Related To Milestone Payments Expense related to milestone payments. Royalties or milestones payments made Impairment of long-lived assets Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Deferred revenue from customers, net of current portion Deferred Revenue from Customers, Non Current Deferred revenue from customers non current. Common stock issued upon exercise of stock options Stock Issues Early Period Share Stock Options Exercised Stock issues early period share stock options exercised. Common warrant shares exercised. Common Warrant Shares Exercised Exercised Organization, Consolidation and Presentation of Financial Statements [Abstract] Local Phone Number Local Phone Number Operating Lease, Impairment Loss Impairment of right of use assets Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common warrants, Common Warrants [Member] Common Warrants Fair Value Measurement Inputs and Valuation Techniques [Abstract] Commitments and Contingencies Disclosure [Abstract] Available-for-sale securities, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost Katholieke Universiteit Leuven [Member] Katholieke Universiteit Leuven [Member] Katholieke Universiteit Leuven. Less: current portion Operating lease liabilities, current Operating Lease, Liability, Current Document Information [Line Items] Document Information [Line Items] Luxna biotech Co Ltd [Member] Luxna Biotech Co Ltd [Member] Luxna biotech Co Ltd [Member] Warrant liability noncurrent. Warrant Liability Noncurrent Warrant liability Accumulated Deficit Retained Earnings [Member] Over-Allotment Option [Member] Over-Allotment Option [Member] Document Transition Report Document Transition Report Summary Of Available For Sale And Held To Maturity Securities Amortized Cost Gross Unrealized Gains Losses And Fair Value Table [Text Block] Summary of available for sale and held to maturity securities amortized cost gross unrealized gains losses and fair value. Summary of Available For Sale and Held to Maturity Securities Amortized Cost Gross Unrealized Gains Losses and Fair Value Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Combined price per, pre-funded warrant and common warrant Combined Purchase Price Per Pre Funded Warrant And Accompanying Warrant Combined purchase price of one pre-funded warrant and accompanying warrant. Exercisable at June 30, 2024 Common warrant shares exercisable. Common Warrant Shares Exercisable Proceeds from the ESPP purchase Proceeds from Stock Plans Weighted average exercise price Exercised Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Minimum [Member] Minimum [Member] Common Stock Common Stock [Member] Restricted Cash, Total Restricted cash Restricted Cash Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Accrued liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Aggregate Intrinsic Value, options vested and expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Research and Development Arrangement, Contract to Perform for Others, Costs Incurred, Gross Funding related to collaboration agreement extension Common warrant shares outstanding. Common Warrant Shares Outstanding Beginning balance, shares Ending balance, shares Weighted average granted fair date value - Beginning balance Weighted average granted fair date value - Ending balance Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Amortization of right of use assets Operating Lease, Right-of-Use Asset, Periodic Reduction Additional Paid-in Capital Additional Paid-in Capital [Member] Issuance of pre-funded warrants in connection with private investment in public equity offering net of offering costs. Issuance of Pre funded Warrants in Connection With Private Investment in Public Equity Offering Net of Offering Costs Issuance of pre-funded warrants in connection with PIPE offering, net of offering costs Investment In Available For Sale And Held To Maturity Securities [Line Items] Investment In Available For Sale And Held To Maturity Securities [Line Items] Investment in available for sale and held to maturity securities. Foreign currency Foreign Currency Transactions and Translations Policy [Policy Text Block] Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Income Statement Location Statement of Income Location, Balance [Domain] Other Assets, Noncurrent, Total Other assets Other Assets, Noncurrent License And Collaboration Agreements [Abstract] License and collaboration agreements [Abstract] Financing Sources [Line Items] Financing Sources [Line Items] Financing Sources Line Items Other liabilities Increase (Decrease) in Other Operating Liabilities Increase (Decrease) in Other Operating Liabilities, Total Other current assets Other Assets, Current Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Employee stock purchase plan. Basis of presentation Basis of Accounting, Policy [Policy Text Block] Long term purchase commitment additional obligation to be paid Long Term Purchase Commitment Additional Obligation To Be Paid Long term purchase commitment additional obligation to be paid. Less: current portion Finance lease liabilities, current Finance Lease, Liability, Current Finance lease right of use assets Finance Lease, Right-of-Use Asset, before Accumulated Amortization Common stock, $0.0001 par value; 520,000,000 shares and 320,000,000 shares authorized as of June 30, 2024 and December 31, 2023, respectively; 79,785,898 and 75,096,906 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively. Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common Stock, Value, Issued Payments for royalties Payments for Royalties Loss on disposal of assets Gain (Loss) on Disposition of Assets Gain (Loss) on Disposition of Assets, Total Share-based compensation arrangement by share-based payment award, options, cancelled options from exchange. Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Cancelled options from Exchange Number of options, Cancelled options from Exchange Cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Summary of fair value of the financial instruments that are measured at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Share-based compensation arrangements by share-based payment award, options, cancelled options from exchange, Weighted average exercise price. Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Cancelled options from Exchange, Weighted Average Exercise Price Weighted average exercise price Cancelled options from Exchange Warrant Liability. Warrant Liability [Member] Warrant Liability [Member] Summary of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Commitments and contingencies (Note 12) Commitments and Contingencies Merck [Member] Merck [Member] Merck. Merck Fair Value, Net Asset (Liability), Total Fair Value, Net Asset (Liability) Weighted average common stock outstanding, assuming dilution Weighted average shares of common stock, diluted Weighted Average Number of Shares Outstanding, Diluted, Total Weighted Average Number of Shares Outstanding, Diluted Summary of significant accounting policies Significant Accounting Policies [Text Block] Research and Development Arrangement, Contract to Perform for Others, Type Research and Development Arrangement, Contract to Perform for Others, Type [Axis] Number of options vested and expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Emory university [Member] Emory University [Member] Emory university [Member] Long term purchase commitment period description Longterm Purchase Commitment Period Description Long term purchase commitment period description. Number of common stock issued upon exercisable of each warrant. Number of common stock issued upon exercisable of each warrant Entity Small Business Entity Small Business U.S. Treasury bonds [Member] US Treasury Securities [Member] Derivative Liability, Total Fair value of the warrants Derivative Liability Investments, Fair Value Disclosure, Total Investments, Fair Value Disclosure Available for sale securities Two thousand twenty three pre funded warrants. Two Thousand Twenty Three Pre Funded Warrants [Member] 2023 Pre-Funded Warrants Vesting of early exercised common stock options Vesting Of Early Excercised Common Stock Options Value Vesting of early excercised common stock options, value. Summary of pre-funded warrant shares outstanding. Summary of Pre-funded Warrant Shares Outstanding [Table Text Block] Summary of Pre-funded Warrant Shares Outstanding Contractual Obligation, Total Aggregate payments Contractual Obligation Accretion of discount on investments Accretion (Amortization) of Discounts and Premiums, Investments Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] 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 Accelerated Share Repurchases, Date [Domain] Asset Class Asset Class [Axis] Total finance lease cost Finance Lease Cost Finance Lease Cost Acquisition of right of use asset through operating lease obligation Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Aggregate intrinsic value - Beginning Aggregate intrinsic value - Ending balance Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive loss Other comprehensive income (loss) Other comprehensive income (loss) Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Weighted-average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Subsequent events Subsequent Events [Text Block] Operating lease option to extend Lessee Operating Lease Option To Extend Term Lessee Operating Lease Option To Extend Term. OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax, Total OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Unrealized gain (loss) on available-for-sale securities Accounts Payable, Current, Total Accounts payable Accounts Payable, Current Liabilities, Fair Value Disclosure, Total Liabilities, Fair Value Disclosure Fair value, Liabilities Summary of common warrant shares outstanding. Summary of Common Warrant Shares Outstanding [Table Text Block] Summary of Common Warrant Shares Outstanding Increase (Decrease) in Accrued Liabilities, Total Accrued liabilities Increase (Decrease) in Accrued Liabilities