Income Taxes - Net Deferred Tax Assets - Components (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred Tax Assets
Capitalized research and development expenses	$ 80,267	$ 22,663
Net operating loss carryforwards	42,946	36,675
Research and development and other tax credit carryforwards	13,176	13,176
Stock compensation	4,930	5,577
Unearned revenue	960	1,250
Royalty receivable	10,931	10,717
Lease liabilities	4,850	201
Intangible Asset	6,603
Other	658	585
Subtotal	165,321	90,844
Less: valuation allowance	(159,927)	(85,160)
Total net deferred tax assets	5,394	5,684
Deferred Tax Liabilities
Right-of-use assets	(55)	(69)
Intangible liability	(5,339)	(5,615)
Total deferred tax liabilities	(5,394)	(5,684)
Net deferred tax liabilities	$ 0	$ 0