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Unvested Restricted Common Stock [Member] Unvested restricted common stock Segment Reporting, Policy [Policy Text Block] Segments Cash and Cash Equivalent Cash and cash equivalents Subsidiary, Sale of Stock [Line Items] Common Stock Represents information pertaining to 2023 employee stock purchase plan. 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Nonrefundable license fee Non-refundable license fee Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of basic and diluted net loss per share attributable to common unitholders Earnings Per Share, Basic Net loss per share, basic Net loss per share attributable to common stockholders, basic Schedule of Share-Based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Schedule of equity-based compensation expense Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Outstanding as of ending Outstanding as of beginning Stock Issued Issuance of common stock upon exercise of stock options for which proceeds had not yet been received Liabilities, Current Total current liabilities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net loss to net cash provided by (used in) operating activities: This member stands for paragon therapeutics, inc. Paragon Therapeutics, Inc [Member] Paragon Therapeutics, Inc Prepaid manufacturing Prepaid Manufacturing Current Prepaid manufacturing current. Proceeds from Issuance of Common Stock At The Market Offering Program Net Proceeds from issuance of common stock at the market offering program net. 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Termination Period Of Agreement Termination period of agreement Project [Domain] Lessee, Lease, Description [Line Items] Amendment Flag Class of Warrant or Right, Number of Securities Called by Warrants or Rights Purchase of warrants Carrying amount as of the balance sheet date of accrued manufacturing expenses. Accrued Manufacturing Expenses Current Accrued manufacturing expenses Earnings Per Share, Policy [Policy Text Block] Net Loss Per Share Liabilities and Equity [Abstract] Stockholders' equity: Entity Address, Postal Zip Code Negative cash flows from operations Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash used in operating activities Increase (Decrease) in Operating Lease Liability Operating lease liability Represent information pertaining to Cell Line License Agreement. 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Prepaid clinical Operating Lease, Right-of-Use Asset Right-of-use asset, net Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Document Type Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Entity Central Index Key Debt Securities, Available-for-Sale [Table Text Block] Schedule of Company's investing portfolio Marketable Securities Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Increase (decrease) in cash, cash equivalents and restricted cash Subsequent Event Type [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive units Common Stock, Par or Stated Value Per Share Common stock, par value Defined Benefit Plan, Equity Securities, Class A Common Stock, Employer, Related Party [Member] Related Party Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding weighted-average remaining contractual term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected volatility, Maximum Debt Securities, Available-for-Sale, Amortized Cost COST Debt Securities, Available-for-Sale FAIR VALUE Exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Issuance of common stock upon exercise of stock options (in shares) Other Prepaid Expense, Current Prepaid other Accrued Liabilities, Current Accrued expenses Total Current Fiscal Year End Date Document Quarterly Report Entity Address State Or Province Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Ending balance Beginning balance Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive loss Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax UNREALIZED GAINS Research and Development Expense, Policy [Policy Text Block] Research and Development Expense Common Stock, Capital Shares Reserved for Future Issuance Common stock available for future grants Conversion of Stock, Shares Converted Preferred Units, units converted Conversion of preferred, common and incentive units (in shares) This member stands for Option Agreement. 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APG990 / APG279 Proceeds from Sale and Maturity of Marketable Securities Maturities of marketable securities Subsequent Event Subsequent Event [Member] Property and Equipment, net Other Assets, Noncurrent Other non-current assets 2023 Equity Incentive Plan Represents information pertaining to 2023 equity incentive plan. Equity Incentive Plan 2023 [Member] Antidilutive Securities [Axis] Denominator [Abstract] Denominator: No definition available. Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Fair value of vested units ACCUMULATED OTHER COMPREHENSIVE INCOME Accumulated Other Comprehensive Income (Loss) Increase (Decrease) in Stockholders' Equity [Roll Forward] MEMBERS' DEFICIT Lessee, Operating Lease, Option to Extend Lease, option to extend, description Minimum [Member] Minimum Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Financial Instrument [Axis] Assets, Current [Abstract] Current assets: Number of selected targets initially included under the agreement. 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Prepaids And Other Assets, Disclosure [Text Block] Prepaids and Other Assets Commitments and contingencies (Note 9) Lessee, Leases [Policy Text Block] Leases Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Ending balance (in dollars per share) Beginning balance (in dollars per share) General and Administrative Expense [Member] General and administrative expense Forecast Forecast [Member] Increase (Decrease) in Prepaid Expenses, Other Prepaid expenses and other current assets Long-term marketable securities Marketable Securities, Noncurrent Lessee, Lease, Description [Table] Liabilities, Noncurrent [Abstract] Long-term liabilities: Property and equipment in accounts payable Capital Expenditures Incurred but Not yet Paid Nonvoting Common Stock [Member] Nonvoting Common Stock Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Consolidated net loss Weighted Average Number of Shares Outstanding, Basic Weighted-average common shares outstanding, basic Weighted average shares of common stock outstanding, basic Long-term prepayments Longterm Prepayments Longterm prepayments. Investment Income, Amortization of Discount Amortization of discounts on marketable securities Scenario [Axis] Dr Carl Dambkowski [Member] Dr Carl Dambkowski [Member] Dr. Carl Dambkowski [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Exercisable aggregate intrinsic value Segment Reporting, Expense Information Used by CODM, Description Segment Information, CODM, Profit (Loss) Measure, How Used, Description Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Segments [Axis] Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] The amount of non refundable portion in cash. Non Refundable Portion In Cash Non-refundable fee Subsequent Events [Text Block] Subsequent Events Related Party Transactions Disclosure [Text Block] Related Parties Duration of expiration period of commercial sale. Expiration Period Of Commercial Sale Expiration period of commercial sale Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Lessee, Operating Lease, Existence of Option to Extend [true false] CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY Lab Space Lease Lab Space Lease [Member] Lab space lease. Series A Preferred Stock [Member] Series A Preferred Units Use of Estimates Use of Estimates, Policy [Policy Text Block] Overallotment option Over-Allotment Option [Member] October 2025 Offering Leasehold Improvements [Member] Leasehold improvements Entity Address, Address Line Two Fair Value Disclosures [Text Block] Fair Value Measurements Carrying value as of the balance sheet date of obligations incurred through that date and payable for accrued external research and development expenses. Accrued External Research And Development Expenses, Current Accrued external research and development expenses Project [Axis] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] OPTIONS Schedule of Accrued Expenses Schedule of Accrued Liabilities [Table Text Block] Other Assets, Current Other current assets Maturities between one and two years Maturities Between One And Two Years [Member] Maturities between one And two years. Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Plan Name [Domain] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Related Party, Type [Axis] Potential shares issuable under the ESPP [Member] Potential shares issuable under the espp. Potential shares issuable under the ESPP Property, Plant and Equipment, Policy [Policy Text Block] Property and Equipment, net Entity Address, City or Town Threshold days for termination upon uncured material breach after notice of such breach. Threshold Days, Termination Upon Material Breach Uncured After Notice Threshold number of days for termination upon uncured material breach after notice of such breach Number of Reportable Segments Number of Reportable Segments Number of reporting unit Security Exchange Name Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross Property and equipment, gross Counterparty Name [Axis] Net loss before taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Antidilutive Securities, Name [Domain] Stockholders' Equity Stockholders' Equity Threshold days for no termination or cancellation fee upon performance breach. Threshold Days, No Termination Or Cancellation Fee Upon Performance Breach Threshold number of days for no termination or cancellation fee upon performance breach Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash, cash equivalents and restricted cash, end of period Cash, cash equivalents and restricted cash, beginning of period Total Prefunded Warrant [Member] Prefunded warrant. Pre-funded Warrant Statistical Measurement [Domain] Warrants exercise price Class of Warrant or Right, Exercise Price of Warrants or Rights Assets, Current Total current assets Share-Based Payment Arrangement, Expense Equity-based compensation expense Document Period End Date Fair Value Hierarchy and NAV [Domain] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Exercisable CONDENSED CONSOLIDATED BALANCE SHEETS Restricted Stock Units (RSUs) [Member] Restricted stock unit Unvested restricted stock units TSLP License Agreement TSLP License Agreement [Member] TSLP license agreement. Samsung Biologics Limited Samsung Biologics Limited [Member] Samsung Biologics Limited Member. Research And Development Personnel Related Excluding Equity Based Compensation Research and development personnel related excluding equity based compensation. Research and development personnel-related (excluding equity-based compensation) Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] General And Administrative Personnel Related Excluding Equity Based Compensation General and administrative personnel related excluding equity based compensation. General and administrative personnel-related (excluding equity-based compensation) Reconciliation of cash, cash equivalents and restricted cash: Class of Stock [Axis] External Discovery Related Costs And Other External discovery related costs and other. External-discovery related costs and other The duration of prior notice period for termination of work order. Prior Notice Period For Termination Of Work Order Prior notice period for termination of work order Commercial Paper Commercial Paper, Not Included with Cash and Cash Equivalents [Member] Liabilities Total liabilities Financial Instruments [Domain] Rule 10b5-1 Arr Modified Flag Rule 10b5-1 Arr Modified Flag Non-cash lease expense Non-Cash Lease Expense Non-cash lease expense. Restricted Stock [Member] Unvested restricted common stock Prepaids and Other Assets Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Value of securities in unrealized loss position, less than 12 months Weighted Average Number of Shares Outstanding, Diluted Weighted-average common shares outstanding, diluted Weighted average shares of common stock outstanding, diluted Entity File Number OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Unrealized gain (loss) on marketable securities, net of tax Unrealized (loss) gain on marketable securities, net of tax Represents purchase period of purchase of common stock under employee stock purchase plan of shares based compensation arrangement. Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Period Purchase Period Document and Entity Information [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected volatility, Minimum Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Total Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited Forfeited Scenario [Domain] U.S. Treasury Securities US Treasury Securities [Member] Number of Operating Segments Number of Operating Segments Sale of Stock [Domain] Segment Reporting Disclosure [Text Block] Segment Information General and Administrative Expense General and administrative General and Administrative Expense, Total General and administrative operations Series B Preferred Stock [Member] Series B Preferred Units Subsequent Event [Table] Proceeds From Issuance Of Common Stock Under The At The Market Net Of Issuance Costs Proceeds from issuance of common stock under the at the market net of issuance costs. 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Jane Pritchett Henderson [Member] Equity-Based Compensation Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Unrecognized compensation expense Total Assets, Fair Value Disclosure Sale of Stock [Axis] Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash (used in) provided by investing activities Title of 12(b) Security Schedule of Segment Reporting Information, by Segment [Table] Entity Address, Address Line Three Forfeited (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Money Market Funds Money Market Funds Related Party, Type [Domain] Represents the information pertaining to Tranche Option. Tranche Option [Member] Tranche Option Debt Securities, Available-for-Sale, Allowance for Credit Loss Allowance for credit loss Collaborative Arrangement and Arrangement Other than Collaborative [Table] Zumilokibart (APG777) [Member] Zumilokibart (APG777). Zumilokibart (APG777) The amount of collaborative arrangement aggregate fair value. Collaborative Arrangement Aggregate Fair Value Aggregate fair value on grant date Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Property, Plant and Equipment [Table Text Block] Schedule of Property and equipment, Net Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding as of ending (in dollars per share) Outstanding as of beginning (in dollars per share) Preferred Shares Preferred Stock [Text Block] Fair Value, Recurring and Nonrecurring [Table] Sales agreement. Sales Agreement [Member] Sales Agreement ADDITIONAL PAID-IN CAPITAL Additional Paid-in Capital Measurement Frequency [Domain] Income Statement Location [Axis] Trading Symbol Property, Plant and Equipment Disclosure [Text Block] Property and Equipment, net Schedule of Related Party Transactions, by Related Party [Table] Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Risk free interest rate, Maximum Subsequent Event Type [Axis] Office Space Lease Office space lease. Office Space Lease [Member] Employee-related Liabilities, Current Accrued employee compensation Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Cash flows from financing activities: Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected term Fair Value, Recurring Fair Value, Recurring Entity Ex Transition Period Dr Michael Henderson [Member] Dr Michael Henderson [Member] Dr. Michael Henderson [Member] Equity Components [Axis] Equity Component [Domain] Share-Based Payment Arrangement, Activity [Table Text Block] Schedule of activity of equity instrument other than option Asset Class [Axis] Schedule of Prepaid Expenses and Other Assets Tabular disclosure for prepaid expenses and other assets. Disclosure Of Prepaid Expenses And Other Assets [Table Text Block] Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Vesting of restricted stock (in shares) IPO [Member] IPO Debt Securities Issued by U.S. Government Agencies US Treasury and Government US Treasury and Government CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE LOSS Maximum [Member] Maximum Statistical Measurement [Axis] Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised (in dollars per share) Common Stock, Value, Issued Common Stock; $0.00001 par value, 400,000,000 authorized, 75,323,726 issued and 74,882,396 outstanding as of March 31, 2026; 400,000,000 authorized, 69,038,943 issued and 68,401,349 outstanding as of December 31, 2025 Option and License Agreements Option and License Agreements [Member] Option and License Agreements. Net Income (Loss) Available to Common Stockholders, Diluted Net loss attributable to common stockholders, diluted Consolidation, Policy [Policy Text Block] Principles of Consolidation Represents percentage of purchase price for purchase of common stock under employee stock purchase plan of shares based compensation arrangement. Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price Percentage Purchase price percentage Equipment [Member] Laboratory equipment Lab equipment Percentage Of Capital Stock Beneficially Owns Percentage of capital stock beneficially owns. Percentage of capital stock beneficially owns The cash inflow associated with the amount received from entity's first offering of stock to the public net of costs. Proceeds from Issuance Initial Public Offering, Net Net proceeds from IPO Proceeds from Collaborators Upfront cash amount paid Related Party Transaction [Line Items] Related Parties Entity Registrant Name Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax UNREALIZED LOSSES Operating Leases Total other income, net Other Nonoperating Income (Expense) Additional paid-in capital. Additional paid-in capital Subsequent Events Income Tax Expense (Benefit) Income Tax Expense (Benefit), Total Provision for income taxes Provision for income taxes Measurement Frequency [Axis] Securities (Assets) [Member] Marketable securities IT equipment [Member] It equipment. IT equipment Proceeds from Issuance of Common Stock Proceeds from issuance of common stock, net of issuance costs Gross proceeds from issuance of common stock Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Equity-Based Compensation Entity Common Stock, Shares Outstanding Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentrations of Credit Risk and Significant Suppliers At-The-Market Offering Program (the "ATM Facility") At-the-market offering program member. At-The-Market Offering Program [Member] At-The-Market Equity Offering Program ("ATM") Lessee, Operating Lease, Remaining Lease Term Operating lease, remaining lease term Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income (loss) Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Granted Granted (in shares) Temporary Equity, by Class of Stock [Table] Assets Total assets Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Exercisable weighted-average remaining contractual term CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value of Financial Instruments Share-Based Payment Arrangement [Policy Text Block] Equity-Based Compensation Sale of Stock, Number of Shares Issued in Transaction Issued common units (in shares) Option to purchase additional shares Stock Issued During Period, Shares, New Issues Shares issued Common stock issued, net of issuance costs (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Vested Amount of cash outflow for payment of non-refundable fees. Payment of Non Refundable Fees Payment of non-refundable fees Earnings Per Share, Diluted Net loss per share, diluted Net loss per share attributable to common stockholders, diluted Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Operating Segments The amount of maximum amount of achievement of development and clinical milestones. Maximum Amount Of Achievement Of Development And Clinical Milestones Maximum amount of achievement of development and clinical mile stones Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration] City Area Code Restricted Cash and Cash Equivalent, Current Restricted cash Counterparty Name [Domain] Segment Reporting Information [Line Items] Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents Property, Plant and Equipment, Net Property and equipment, net Total Operating Income (Loss) Loss from operations Retained Earnings [Member] Accumulated Deficit Employee Benefits and Share-Based Compensation Equity-based compensation Share-Based Payment Arrangement, Noncash Expense Equity-based compensation expense Payment of deferred offering costs Payments of Stock Issuance Costs Stock issuance costs Operating Lease, Weighted Average Discount Rate, Percent Weighted average incremental borrowing rate used to determine the operating lease liabilities Represents maximum percentage of eligible employee contribution of their earnings towards the purchase of common stock under employee stock purchase plan of shares based compensation arrangement. Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Percentage of Eligible Employees Contribution Maximum percentage of eligible employees contribution Operating Lease, Liability, Noncurrent Lease liability, net of current Lease liability, Non-current Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash provided by financing activities Nonoperating Income (Expense) [Abstract] Other income, net: Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of potential common units excluded from calculation of diluted net loss per share attributable to common unitholders Corporate Debt Securities Corporate Debt Securities [Member] Debt Securities, Available-for-Sale [Table] Entity Interactive Data Current Income Statement Location [Domain] Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash flows from operating activities: Furniture and Fixtures [Member] Furniture and fixtures Cash Equivalents, at Carrying Value Cash and cash equivalents Entity Tax Identification Number Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions Number of securities in unrealized loss position, less than 12 months This member stands for WuXi Biologics. WuXi Biologics [Member] WuXi Biologics Represents the information pertaining to voting common stock. Voting Common Stock [Member] Voting Common Stock Represents the information pertaining to Paragon IL13 License Agreement. Paragon IL13 License Agreement [Member] Paragon IL13 License Agreement Represents information pertaining to biologics master services agreement. Biologics Master Services Agreement [Member] Biologics Master Services Agreement Local Phone Number Summary of Significant Accounting Policies Amount of unpaid financing cost included in accrued liability. Unpaid Financing Cost in Accrued Liability Unpaid financing cost in accrued liability Class of Stock [Domain] Commercial paper Commercial Paper [Member] Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Share based compensation recognition period Entity Emerging Growth Company