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US government securities due within one year Share-Based Payment Arrangement, Tranche One Share-Based Payment Arrangement, Tranche One [Member] Weighted average remaining contractual term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Debt Securities, Available-for-Sale, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Total Amortized Cost Debt Securities, Available-for-Sale Debt Securities, Available-for-Sale, Total Fair Value License Fees Receivable License fees receivable License fee receivable Document Financial Statement Error Correction [Flag] Number of options, exercised Exercise of stock options, shares Number of options, exercised1 Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Other prepaid expenses Other Prepaid Expense, Current Current Fiscal Year End Date Incremental fair value fully recognized Incremental Fair Value Fully Recognized Incremental fair value fully recognized. 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Supply revenue Antidilutive Securities [Axis] Operating Loss Carryforwards [Line Items] Award vesting percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage State [Member] State and Local Jurisdiction [Member] AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income [Member] FLAC shareholders Frazier Lifesciences Acquisition Corporation Shareholders Frazier Lifesciences Acquisition Corporation Shareholders [Member] Frazier Lifesciences Acquisition Corporation shareholders. Cash [Member] Cash Principal Transaction Revenue [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Personnel Expenses Personnel Expenses [Policy Text Block] Personnel expenses. 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Total accrued expenses and other current liabilities Accrued expenses and other current liabilities Accounts Payable and Other Accrued Liabilities, Current Number of shares called by each warrant Class of Warrant or Right, Number of Securities Called by Each Warrant or Right Selected Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Segment Reporting [Abstract] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total Net assets Business Combination, Recognized Asset Acquired, Asset Profit Rghts - Dezima Acquisition Business Combination [Policy Text Block] Current liabilities: Liabilities, Current [Abstract] Related Party Transactions [Abstract] Menarini International Licensing Agreement Menarini International Licensing Agreement [Member] Menarini International Licensing Agreement. Beginning Balance, shares Ending Balance, shares Shares, Outstanding Net operating loss carryforwards Operating Loss Carryforwards Amgen M T P C Shareholders Amgen M T P C Shareholders [Member] Amgen & MTPC shareholders. Prepaid Expense, Noncurrent, Total Long term prepaid expenses Prepaid Expense, Noncurrent Warrants to Purchase Ordinary Shares Warrants To Purchase Ordinary Shares [Member] Warrants to purchase ordinary shares. Commitments and Contingencies Commitments and contingencies (Note 12) Leases Lessee, Leases [Policy Text Block] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted average Fair Value Per Share Outstanding, Ending Balance Weighted average Fair Value Per Share Outstanding, Beginning Balance Auditor Firm ID Stock Issued During Period Shares Pre Funded Warrants Exercised Stock issued during period shares pre funded warrants exercised. Exercise of Pre-Funded Warrants,Shares Restricted Cash, Current Restricted cash Marketable Securities, Noncurrent Marketable securities, net of current portion Derivative earnout liability Earnout Liability Fair Value Disclosure Earnout liability fair value disclosure. Revenue recognized under the Menarini License during the period Revenue recognized under the Menarini License during the period Deferred Revenue Recognized Deferred Revenue Recognized Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Weighted average remaining vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Foreign exchange differences Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Unrecognized Compensation Cost Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Unrecognized Compensation Cost Share based compensation arrangement by share based payment award equity instruments unrecognized compensation cost. Loss for the year Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Loss for the period Loss Contingencies [Table] Convertible Debt and Embedded Redemption Features Convertible Debt And Embedded Redemption Features [Policy Text Block] Convertible Debt And Embedded Redemption Features. Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Ordinary Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic Stock Issued During Period, Value, Issuance of Earnout Shares Value of stock issued during period issuance of earnout shares. Issuance of Earnout Shares Document Information: Document Information [Line Items] Aggregate intrinsic value, exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Schedule of Effective Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Dezima Dezima Pharma B V [Member] Dezima Pharma B.V. 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Convertible Loan Agreement Convertible Loan Agreement [Member] Convertible Loan Agreement. License revenue attributed from license performance obligation License Revenue Attributed From License Performance Obligations License revenue attributed from license performance obligations. Statement of Financial Position [Abstract] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Restricted Stock Units Revenue Recognition Revenue [Policy Text Block] Antidilutive Security, Excluded EPS Calculation [Table] Vesting [Axis] Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income/(loss) Office furniture and equipment Office Furniture And Equipment [Member] Office furniture and equipment. 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Schedule of Components of Provision for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Statement of Cash Flows [Abstract] Federal Current Federal Tax Expense (Benefit) Earnout shares vested Earnout Shares Vested Earnout shares vested. Schedule of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Stock Issued During Period Value Pre Funded Warrants Exercised Stock issued during period value pre funded warrants exercised. Exercise of Pre-Funded Warrants Shareholders' Equity Equity [Text Block] Vesting of RSUs Stock issued during period value vesting of restricted shares. Stock Issued During Period Value Vesting Of Restricted Shares Vesting of restricted shares Net Loss per Ordinary Share Earnings Per Share [Text Block] Dividend Yield Measurement Input, Expected Dividend Rate [Member] Computer equipment Computer Equipment [Member] Total profit or loss and comprehensive loss for the year Loss for the year Aggregate intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value First Tranche Financing First tranche financing [member] First tranche financing. Tax credit, Massachusetts Deferred Tax Assets Tax Credit Massachusetts Deferred tax assets tax credit massachusetts. Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Increase Decrease In Prepayments And Other Receivables Increase decrease in prepayments and other receivables. 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Document Fiscal Year Focus Investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Retirement Benefits [Abstract] Accounts Payable, Current, Total Accounts payable Accounts Payable, Current Incremental fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value Schedule of Income Before Provision for Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Research and Development Expense Research and Development Expense1 Defined Contribution Plan, Employer Matching Contribution Defined Contribution Plan, Employer Matching Contribution, Percent of Match Federal Deferred Federal Income Tax Expense (Benefit) Addition of deferred revenue under the Menarini License Addition of Deferred Revenue Addition of Deferred Revenue Total revenue Revenue Beginning balance on January 1, 2024 Ending balance on March 31, 2024 Research and Development Tax Credit Carryforwards [Member] Research Tax Credit Carryforward [Member] Outstanding convertible debt converted Convertible debt outstanding principal and interest converted Convertible debt outstanding principal and interest converted. Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Schedule of Restricted Stock Unit Activity Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block] Proceeds from exercise of options Proceeds from Stock Options Exercised Fair Value Disclosures [Abstract] Commitments and Contingencies Disclosure [Abstract] Share Value (USD) Measurement Input, Share Price [Member] US government agency securities due within one year Us Government Agency Securities Due Within One Year [Member] US government agency securities due within one year. Derivative Derivative [Member] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total Liabilities assumed Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less) Debt Instrument [Axis] Functional and Reporting Currency Functional and Reporting Currency [Policy Text Block] Functional and Reporting Currency. Share-Based Payment Arrangement [Abstract] Issuance Of Earnout Shares Amount Issuance of earnout shares amount Issuance of earnout shares Sale of Stock [Axis] Derivative Warrants Liability Derivatives, Policy [Policy Text Block] Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash (used in)/provided by investing activities Private Placement Warrants Private Placement [Member] Title of 12(b) Security Deferred tax liabilities: Deferred Tax Liabilities, Net [Abstract] December 2024 Offering [Member] December 2024 offering. December 2024 Offering Weighted average exercise price, forfeited Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted average Fair Value Per Share, Forfeited/Cancelled Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Money Market Funds [Member] Money market funds Related and Nonrelated Parties [Domain] Income Taxes Income Tax Disclosure [Text Block] Document Information Document Information [Table] Changes in working capital: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Private Placement Warrants Private Placement Warrants [Member] Private placement warrants. Summary of Estimated Useful Lives of Property And Equipment 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 Michael Davidson. Michael Davidson [Member] M. Davidson Michael Davidson Income Tax Disclosure [Abstract] Fair Value, Recurring and Nonrecurring [Table] FLAC Merger Business Combination [Text Block] Unrecognized tax benefits Unrecognized Tax Benefits, Beginning Balance Unrecognized Tax Benefits, Ending Balance Unrecognized Tax Benefits Additional Paid-In Capital [Member] Additional Paid-in Capital [Member] Derivative earnout liability, current Derivative Earnout Liability, Current Derivative earnout liability, current. 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Document Annual Report Business Combination [Axis] Contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Depreciation, Depletion and Amortization, Nonproduction Depreciation, Depletion and Amortization, Nonproduction, Total Depreciation and amortization Maximum Maximum [Member] Change in Fair Value of Warrants Change in fair value of warrants. Fair value change - warrants February 2024 Offering [Member] February 2024 offering. 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Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Number of RSUs, Granted Amortization and depreciation Deferred Tax Assets Amortization And Depreciation Deferred tax assets amortization and depreciation. Total assets Assets Property, Plant and Equipment [Table] Weighted average remaining contractual term (in years), exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Income Statement [Abstract] Prepaid research and development costs Prepaid Research and Development Costs Current Prepaid research and development costs current. Share-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Cash, Cash Equivalents and Marketable Securities Cash, Cash Equivalent, and Marketable Security [Text Block] Total deferred Deferred Income Tax Expense (Benefit) Selling, General and Administrative Expenses Selling, General and Administrative Expenses [Member] Ordinary shares issued and sold in offering Sale of Stock, Number of Shares Issued in Transaction Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Number of RSUs, Vested Business Combination [Abstract] Diluted Net loss per ordinary share, Diluted Net Loss Per Ordinary Share, Diluted Earnings Per Share, Diluted Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Adjusted Earnings/(Loss) Before Taxes for the Company's Single Segment Title and Position [Domain] City Area Code Increase in volatility weight percentage of ordinary share per calendar quarter. Increase in volatility weight percentage of ordinary share per calendar quarter Convertible debt number of shares issued upon conversion Number of shares issued upon debt conversion Number of shares issued upon debt conversion. Auditor Name Summary of Quarterly Financial Data Quarterly Financial Information [Table Text Block] Convertible debt face amount Debt instrument face amount Debt Instrument, Face Amount Business Combination [Line Items] Counterparty Name [Domain] Accrued research and development materials and services Accrued Research And Development Materials And Services Current Accrued research and development materials and services current. Commercial Program Expense Commercial program expense. Commercial programs Sander Slootweg [Member] Sander Slootweg. Sander Slootweg Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Exchange ratio Stockholders' Equity Note, Stock Split, Conversion Ratio Cash Cash and Cash Equivalents, Policy [Policy Text Block] Fair value of consideration in the form of ordinary shares Business Combination, Consideration Transferred, Equity Interest Derivative warrant liabilities Derivative Liability, Current Property, Plant and Equipment, Net, Total Property, plant and equipment, net Property, Plant and Equipment, Net Percentage of commission payable on gross proceeds Percentage Of Commission Payable On Gross Proceeds Percentage of commission payable on gross proceeds. Louise Kooij [Member] Louise Kooij Member. Louise Kooij Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Cash, cash equivalents and restricted cash Cash, cash equivalents and restricted cash at the end of the period Cash, cash equivalents and restricted cash at the beginning of the period Operating loss Operating Income (Loss) Accumulated Loss [Member] Retained Earnings [Member] Entity Address, Country Share-Based Payment Arrangement, Noncash Expense, Total Share-based compensation Share-Based Payment Arrangement, Noncash Expense Cash, Cash Equivalents and Marketable Securities [Table Text Block] Cash, cash equivalents and marketable securities. Summary of Cash, Cash Equivalents and Marketable Securities Payments of Stock Issuance Costs Transaction costs on December 2024 issue of Ordinary Shares and Pre-Funded Warrants Lease liability Deferred Tax Assets Lease Liability Arrangements Deferred tax assets lease liability arrangements. Lease liability, net of current portion Operating Lease, Liability, Noncurrent Level 1 Fair Value, Inputs, Level 1 [Member] Class of Stock [Line Items] Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Auditor Location Stock Issued During Period, Shares, Issuance of Earnout Shares Number of shares issued during the period issuance of earnout shares. Issuance of Earnout Shares, shares Other income (expense): Nonoperating Income (Expense) [Abstract] Derivative earnout liability Derivative Liability, Noncurrent Description of likelihood income tax percentage Income Tax Examination, Likelihood of Unfavorable Settlement US government agency securities US Government Corporations and Agencies Securities [Member] Schedule of Antidilutive Securities Excluded from Computation of Diluted Weighted-average Ordinary Shares Outstanding Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Income Tax Jurisdiction [Domain] Effect of currency translation Deferred Revenue Effect Of Currency Translation Deferred revenue effect of currency translation. Entity Interactive Data Current Statement of Income Location, Balance [Domain] Operating Activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Volatility ordinary shares Volatility ordinary shares. Volatility Ordinary Shares External R&D expense External Research and Development Expense External research and development expense. Change in fair value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Entity Tax Identification Number The Company Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Summary of Significant Accounting Policies [Line Item] Summary of significant accounting policies Proceeds from Issuance or Sale of Equity, Total Proceeds from issuing equity securities Proceeds from Issuance or Sale of Equity Local Phone Number Shares Offering, Aggregate Amount The aggregate amount of shares to be offered. Shares Offering, Aggregate Amount Settlement of derivative earnout liability upon achievement of milestone Settlement Of Derivative Earnout Liability Upon Achievement Of Milestone Settlement of derivative earnout liability upon achievement of milestone. Accounting Policies [Abstract] Summary of Company's Deferred Revenue Deferred Revenue, by Arrangement, Disclosure [Table Text Block] Total revenue Revenue Revenue from Contract with Customer, Excluding Assessed Tax Reconciliation to consolidated net loss Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Cash and Cash Equivalents [Member] Cash and cash equivalents Class of Stock [Domain] Series A Subscription Agreement Series A Subscription Agreement [Member] Series A Subscription Agreement. Labor and Related Expense Personnel expense Accrued professional fees and other Accrued Professional Fees, Current Employee contribution Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Income Loss from Continuing Operations Segment Adjusted Loss Before Tax Income loss from continuing operations segment adjusted loss before tax. Segment adjusted loss before tax Stock, Class of Stock [Table] Derivative Earnout Liability Derivatives, Reporting of Derivative Activity [Policy Text Block] Pre-Funded Warrants Pre Funded Warrants [Member] Pre-funded warrants. Entity Emerging Growth Company Tax Credit Carryforward, Name [Domain]