Document and Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] Common Stock [Member] Common Stock Series A Preferred Stock [Member] 8.625% Series A Cumulative, Perpetual Preferred Stock Series A Preferred Stock ADR [Member] Series B Depositary Shares Document Information [Line Items] Document Type Document Type Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Securities Act File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Statement of Financial Position [Abstract] Statement [Table] Series B Preferred Stock [Member] 8.375% Series B Cumulative, Perpetual Preferred Stock Series B Preferred Stock Statement [Line Items] Assets [Abstract] Assets, Current [Abstract] Current assets: Cash and Cash Equivalent Cash and cash equivalents Total unrestricted cash and cash equivalents Restricted Cash, Current Short-term restricted cash Equity Securities, FV-NI, Current Investment in equity securities Accounts and Other Receivables, Net, Current Trade and other receivables, net Royalty and commercial payment receivables under effective interest rate (EIR) method to be received within one year or the normal operating cycle, if longer. Royalty and Commercial Payment Receivables, Effective Interest Rate Method, Short-Term Short-term royalty and commercial payment receivables under the EIR method Royalty and commercial payment receivables under cost recovery method probable and reasonably estimable to be received within one year or the normal operating cycle, if longer. Royalty and Commercial Payment Receivables, Cost Recovery Method, Short-Term Short-term royalty and commercial payment receivables under the cost recovery method Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current Total current assets Restricted Cash, Noncurrent Long-term restricted cash Property, Plant and Equipment, Net Property and equipment, net Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Royalty and commercial payment receivables under effective interest rate method probable and reasonably estimable to be received after one year or beyond the normal operating cycle, if longer. Royalty and Commercial Payment Receivables, Effective Interest Rate Method, Long-Term Long-term royalty and commercial payment receivables under the EIR method Royalty and commercial payment receivables under cost recovery method probable and reasonably estimable to be received after one year or beyond the normal operating cycle, if longer. Royalty and Commercial Payment Receivables, Cost Recovery Method, Long-Term Long-term royalty and commercial payment receivables under the cost recovery method Carrying amount as of the balance sheet date of milestone assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. Amount represents initial fair value in accordance with ASC 825. Milestone Assets, Noncurrent Exarafenib milestone asset (Note 6) Exarafenib milestone asset Fair value of investment in warrants, classified as noncurrent. Investment, Warrants, Noncurrent Fair value of warrants Investment in warrants Castle Creek warrants Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Intangible assets Other Assets, Noncurrent Other assets - long term Assets Total assets Liabilities and Equity [Abstract] Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Accounts payable Carrying value as of the balance sheet date of obligations incurred and payable, and liabilities classified as other, due within one year or within the normal operating cycle if longer. Accrued and Other Liabilities, Current Accrued and other liabilities Accrued and other current liabilities Total Liability recorded for contingent consideration under purchase agreements. May include royalty purchase agreements, assignment and assumption agreements, and commercial payment purchase agreements. Includes contingent consideration recognized under ASC 815 and measured at fair value as a current liability at the inception of the transaction. Also includes contingent consideration recognized under ASC 450 if it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated. Classified as current. Contingent Consideration Under Purchase Agreements Contingent consideration under RPAs, AAAs, and CPPAs Operating Lease, Liability, Current Operating lease liabilities Current operating lease liabilities Deferred Income, Current Unearned revenue recognized under units-of-revenue method Unearned revenue recognized under units-of-revenue method, current Carrying value as of the balance sheet date of obligations incurred through that date and payable for preferred stock dividend. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Accrued Preferred Stock Dividend, Current Preferred stock dividend accrual Long-Term Debt, Current Maturities Less: current portion of long-term debt Current portion of long-term debt Asset Acquisition, Contingent Value Rights, Liability, Current Asset Acquisition, Contingent Value Rights, Liability, Current Contingent value rights liabilities - current portion Liabilities, Current Total current liabilities Deferred Income, Noncurrent Unearned revenue recognized under units-of-revenue method - long-term Unearned revenue recognized under units-of-revenue method, noncurrent Asset Acquisition, Contingent Consideration, Liability, Noncurrent Exarafenib milestone contingent consideration (Note 6) Exarafenib milestone contingent consideration Operating Lease, Liability, Noncurrent Long-term operating lease liabilities Non-current operating lease liabilities Long-Term Debt, Excluding Current Maturities Long-term debt Asset Acquisition, Contingent Value Rights, Liability, Noncurrent Asset Acquisition, Contingent Value Rights, Liability, Noncurrent Contingent value rights liabilities - long-term Deferred Income Tax Liabilities, Net Deferred tax liability Liabilities Total liabilities Commitments and Contingencies Commitments and Contingencies (Note 11) Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount Convertible preferred stock, $0.05 par value, 5,003 shares authorized, issued and outstanding as of March 31, 2026 and December 31, 2025 Equity, Attributable to Parent [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Preferred stock Common Stock, Value, Issued Common stock, $0.0075 par value, 277,333,332 shares authorized, 11,909,854 and 11,858,955 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively Additional Paid in Capital Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income Retained Earnings (Accumulated Deficit) Accumulated deficit Equity, Attributable to Parent Total stockholders' equity Liabilities and Equity Total liabilities, convertible preferred stock and stockholders' equity Temporary Equity, Other Disclosure [Abstract] Convertible Preferred Stock Temporary Equity, Par or Stated Value Per Share Convertible preferred stock, par value (in dollars per share) Temporary Equity, Shares Authorized Convertible preferred stock, shares authorized (in shares) Temporary Equity, Shares Issued Convertible preferred stock, shares issued (in shares) Temporary Equity, Shares Outstanding Convertible preferred stock, shares outstanding (in shares) Stockholders' Equity, Number of Shares, Par Value and Other Disclosure [Abstract] Preferred Stock, Number of Shares, Par Value and Other Disclosure [Abstract] Preferred Stock Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized (in shares) Preferred Stock, Dividend Rate, Percentage Preferred stock, dividend rate (as a percent) Preferred Stock, Shares Issued Preferred stock, shares issued (in shares) Preferred Stock, Shares Outstanding Preferred stock, shares outstanding (in shares) Common Stock, Number of Shares, Par Value and Other Disclosure [Abstract] Common Stock Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized (in shares) Common Stock, Shares, Issued Common stock, shares issued (in shares) Common Stock, Shares, Outstanding Common stock, shares outstanding (in shares) Income Statement [Abstract] Revenues [Abstract] Income and revenues: Income Amount of income, not accounted for under Topic 606, in accordance with the effective interest rate method. Includes income from purchased receivables. Income Not from Contract with Customer, Effective Interest Rate Method Income from purchased receivables under the EIR method Income from Purchased Receivables Under the EIR Method Amount of income that is not accounted for under Topic 606, in accordance with the cost recovery method. Income Not from Contract with Customer, Cost Recovery Method Income from purchased receivables under cost recovery method Income from purchased receivables under the cost recovery method Revenue from Contract with Customer, Excluding Assessed Tax Revenue from contracts with customers Amount of revenue that is not accounted for under Topic 606, in accordance with the units-of-revenue method. Revenue Not from Contract with Customer, Units of Revenue Method Revenue recognized under units-of-revenue method Revenues Income and revenues Total income and revenues Operating Expenses [Abstract] Operating expenses: Research and Development Expense Research and development expenses Research and development General and Administrative Expense General and administrative Amortization of Intangible Assets Amortization of intangible assets Amortization of intangible assets Operating Expenses Total operating expenses Operating Income (Loss) Income (loss) from operations Nonoperating Income (Expense) [Abstract] Other income (expense), net: Gain (loss) included in earnings resulting from the asset acquisition. Gain (Loss) on Asset Acquisition Gains on acquisitions Gains on acquisitions Interest Expense, Debt Interest expense Other Nonoperating Income (Expense) Total other income (expense), net Other income (expense), net Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Net income before tax Income Tax Expense (Benefit) Income tax expense Net income Net income Net Income (Loss) Available to Common Stockholders, Basic Net income available to common stockholders, basic Net income (loss) available to (attributable to) common stockholders, basic Net Income (Loss) Available to Common Stockholders, Diluted Net income available to common stockholders, diluted Net income (loss) available to (attributable to) common stockholders, diluted Earnings Per Share, Basic Net income per share available to common stockholders, basic (in dollars per share) Earnings Per Share, Diluted Net income per share available to common stockholders, diluted (in dollars per share) Weighted Average Number of Shares Outstanding, Basic Weighted-average shares used in computing net income per share available to common stockholders, basic (in shares) Weighted-average shares used in computing net income (loss) per share available to (attributable to) common stockholders, basic (in shares) Weighted Average Number of Shares Outstanding, Diluted Weighted-average shares used in computing net income per share available to common stockholders, diluted (in shares) Weighted-average shares used in computing net income (loss) per share available to (attributable to) common stockholders, diluted (in shares) Statement of Comprehensive Income [Abstract] Net Income (Loss) Attributable to Parent [Abstract] Net income Other Comprehensive Income (Loss), Available-for-Sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Net unrealized gain on available-for-sale debt securities Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Statement of Stockholders' Equity [Abstract] Increase (Decrease) in Temporary Equity [Roll Forward] Increase (Decrease) in Temporary Equity Temporary Equity, Including Noncontrolling Interest Convertible preferred stock Equity Components [Axis] Equity Component [Domain] Parent [Member] Preferred Stock [Member] Preferred Stock Convertible preferred stock Additional Paid-in Capital [Member] Additional Paid-In Capital AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income Retained Earnings [Member] Accumulated Deficit Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Equity, Including Portion Attributable to Noncontrolling Interest Balance at end of period Balance at beginning of period Shares, Outstanding Balance at end of period (in shares) Balance at beginning of period (in shares) Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Number of shares, Exercised Exercise of stock options (in shares) APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock-based compensation expense - equity-classified Stock Issued During Period, Value, Employee Benefit Plan Issuance of common stock related to 401(k) contribution Stock Issued During Period, Shares, Employee Benefit Plan Issuance of common stock related to 401(k) contribution (in shares) Value of stock related to Performance Stock Units issued during the period, net of the stock value of such awards forfeited. Stock Issued During Period, Value, Performance Stock Units, Net of Forfeitures, Total Issuance of common stock related to PSUs Number of shares issued during the period related to Performance Stock Units, net of any shares forfeited. Stock Issued During Period, Shares, Performance Stock Units, Net of Forfeitures, Total Issuance of common stock related to PSUs (in shares) Stock Repurchased and Retired During Period, Value Repurchase of common stock Repurchase of common stock Stock Repurchased and Retired During Period, Shares Repurchase of common stock (in shares) Repurchase of common stock (in shares) Stock Issued During Period, Value, New Issues Issuance of common stock under ATM, net of financing costs of $313,000 Stock Issued During Period, Shares, New Issues Issuance of common stock under ATM, net of financing costs of $313,000 (in shares) Shares issued (in shares) Adjustments to Additional Paid in Capital, Reclassifications of Liability to Equity Classified Awards Adjustments to Additional Paid in Capital, Reclassifications of Liability to Equity Classified Awards Reclassification of liability classified awards to equity classified awards Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings Preferred stock dividends Other Comprehensive Income (Loss), Net of Tax Net unrealized gain (loss) on available-for-sale debt securities Statement of Cash Flows [Abstract] Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash flows from operating activities: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net income to net cash provided by (used in) operating activities: Cash flow impact amount of income, not accounted for under Topic 606, in accordance with the effective interest rate method. Includes income from purchased receivables. Income Not from Contract with Customer, Effective Interest Rate Method, Cash Flow Impact Adjustment for income from EIR method purchased receivables Share-Based Payment Arrangement, Noncash Expense Stock-based compensation expense Gain (Loss) on Contract Termination Gain on lease termination Gain on lease termination Deferred Income Tax Expense (Benefit) Income tax expense Defined contribution plan issuance of Common stock for services or claims. Defined Contribution Plan Issuance Of Common Stock For Services Or Claims Common stock contribution to 401(k) Depreciation, Nonproduction Depreciation of property and equipment Depreciation Amortization of Debt Issuance Costs and Discounts Accretion of long-term debt discount and debt issuance costs Accretion of debt discount and debt issuance costs Operating lease payments, non cash. Operating Lease Payments Non Cash Non-cash lease expense Equity Securities, FV-NI, Unrealized Gain (Loss) Change in fair value of equity securities Unrealized gain from change in fair value of equity securities Unrealized gain (loss) from change in fair value of equity securities Change in fair value of available-for-sale debt securities classified as cash equivalents. Change in Fair Value of Available-For-Sale Debt Securities, Cash Equivalents Change in fair value of available-for-sale debt securities classified as cash equivalents Unrealized Gain (Loss) on Derivatives Change in fair value of derivatives Change in fair value of derivatives related to Castle Creek Represents information pertaining to contingent value rights liability working capital adjustment Contingent Value Rights Liability Working Capital Adjustment CVR liability working capital adjustment Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Accounts and Other Receivables Trade and other receivables, net Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and accrued liabilities Increase (Decrease) in Operating Lease Liability Operating lease liabilities Increase (Decrease) in Deferred Revenue Unearned revenue recognized under units-of-revenue method Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash provided by operating activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Cash flows from investing activities: Cash Acquired from Asset Acquisition Cash Acquired from Asset Acquisition Net cash, cash equivalents, and restricted cash acquired in Generation Bio acquisition Payments for Contingent Consideration, Investing Activities Payments for Contingent Consideration, Investing Activities Payment of contingent consideration related to LAVA CVR Amount of cash outflow for consideration under agreements, including Royalty Purchase Agreements (RPAs), Assignment and Assumption Agreements (AAAs), Commercial payment purchase agreement (CPPAs) and other agreements classified as investing activities. Payments may include upfront payments, one-time payments, milestone payments and contingent consideration payments. Payment of Consideration Under Agreements, Investing Activities Payments of consideration under RPAs, AAAs, and CPPAs Payments of consideration under RPAs, AAAs and CPPAs Amount of cash inflow under agreements, including Royalty Purchase Agreements (RPAs), Assignment and Assumption Agreements (AAAs), and Commercial Payment Purchase Agreements (CPPAs), classified as investing activities. Receipts may represent commercial payments attributable to net sales. Receipts Under Agreements, Investing Activities Receipts under RPAs, AAAs, and CPPAs Payments to Acquire Intangible Assets Payment for BioInvent contract-based intangible asset Closing cash payment for intangible assets Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash provided by (used in) investing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Cash flows from financing activities: Proceeds from Issuance of Long-Term Debt Proceeds from issuance of long-term debt Repayments of Long-Term Debt Principal payments - debt Principal repayment