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Former Address Former Address [Member] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Number of shares issued in transaction (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Cover [Abstract] Cover [Abstract] Arrowhead License Arrowhead License [Member] Arrowhead License Series B preferred stock Series B Preferred Stock [Member] Concentration risk, percentage (as a percent) Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Equity Awards Adjustments Equity Awards Adjustments [Member] Revenue Benchmark Revenue from Contract with Customer, Product and Service Benchmark [Member] Rebates, Co-Pay Assistance, Returns, and Other Rebates, Co-Pay Assistance, Returns, and Other [Member] Rebates, Co-Pay Assistance, Returns, and Other Total liabilities and stockholders’ equity Liabilities and Equity Intangible Assets, Net Intangible Assets, Finite-Lived, Policy [Policy Text Block] Stock options Share-Based Payment Arrangement, Option [Member] Share-based compensation arrangement by share-based payment award, equity instruments other than options, eligible to be earned in hurdle three (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Eligible To Be Earned in Hurdle Three Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Eligible To Be Earned in Hurdle Three Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Plan Name [Axis] Plan Name [Axis] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Inventory Disclosure [Abstract] Tabular List, Table Tabular List [Table Text Block] Other expense, net Other Nonoperating Income (Expense) Balance, beginning Balance, ending Gross To Net Adjustments Reserve Gross To Net Adjustments Reserve Name Awards Close in Time to MNPI Disclosures, Individual Name Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Number of research and development categories Segment Reporting, Number Of Research And Development Categories Segment Reporting, Number Of Research And Development Categories RSUs forfeited (in shares) PSUs forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period U.S. government and GSE securities with original maturities of 1 to 2 years (Level 2) US Treasury And Government Due Within One To Two Years [Member] US Treasury And Government Due Within One To Two Years Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Number of stock price appreciation hurdles Share-Based Compensation Arrangement by Share-Based Payment Award, Number Of Stock Price Appreciation Hurdles Share-Based Compensation Arrangement by Share-Based Payment Award, Number Of Stock Price Appreciation Hurdles Preferred stock, par value $0.0001 per share authorized: 5,000,000 shares at June 30, 2026 and December 31, 2025; 2,369,797 shares issued and outstanding at June 30, 2026 and December 31, 2025 Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Cost of Sales Cost of Goods and Service [Policy Text Block] Class of Stock [Domain] Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount CSPC CSPC Pharmaceutical Group Limited [Member] CSPC Pharmaceutical Group Limited Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Selling, General and Administrative Expenses Selling, General and Administrative Expenses, Policy [Policy Text Block] Credit Facility [Axis] Credit Facility [Axis] Accrued interest, net of interest received on maturity of investments Increase (Decrease) In Accrued Interest, Net Of Interest Received The increase (decrease) during the reporting period in the aggregate amount of accrued interest expense incurred but not yet paid, net of interest received on maturity of investments. Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Other non-cash items, net Other Noncash Income (Expense) Debt Instrument [Line Items] Commitments and Contingencies Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Revision of Prior Period [Axis] Revision of Prior Period [Axis] Pre-Funded Warrants Pre-Funded Warrants [Member] Pre FundedWarrants [Member] Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Raw materials Inventory, Raw Materials, Net of Reserves Minimum unrestricted cash balance Debt Instrument, Covenant, Unrestricted Cash, Minimum Debt Instrument, Covenant, Unrestricted Cash, Minimum Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Depreciation and amortization expense Depreciation, Depletion and Amortization Entity Address, Address Line Three Entity Address, Address Line Three Entity Address, Address Line Two Entity Address, Address Line Two Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward] Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward] Current assets: Assets, Current [Abstract] Number of selling, general and administrative categories Segment Reporting, Number Of Selling, General And Administrative Categories Segment Reporting, Number Of Selling, General And Administrative Categories Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Obtaining an operating lease right-of-use asset in exchange for an operating lease liability Right-of-Use Asset Obtained in Exchange for Operating Lease Liability RSUs vested (in dollars per share) PSUs attained (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Comprehensive Income (Loss) Comprehensive Income, Policy [Policy Text Block] Cost of sales Cost of Product and Service Sold Customer Concentration Risk Customer Concentration Risk [Member] Purchase obligation Purchase Obligation Award Timing Method Award Timing Method [Text Block] Variable Rate [Domain] Variable Rate Component [Domain] Variable Rate Component [Domain] Principle of Consolidation Consolidation, Policy [Policy Text Block] Net increase 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 Cash, Cash Equivalents, Restricted Cash and Marketable Securities Cash, Cash Equivalent, and Marketable Security [Text Block] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Research and development Research and Development Expense (Excluding Acquired in Process Cost) Net loss Net loss Net loss Net loss Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from exercise of common stock options Proceeds from Stock Options Exercised Preferred shares number voting rights Preferred Stock, Number Of Voting Rights Number of voting rights of preferred stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights. Interest income Investment Income, Interest Exercisable at the ending of the year (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price 2024 Sales Agreement 2024 Sales Agreement [Member] 2024 Sales Agreement Leases Lessee, Leases [Policy Text Block] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Revenues: Revenues [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Product [Member]