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Income Taxes - Deferred income tax assets and liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Net operating loss	$ 51,517	$ 30,446
R&D credit	8,100	7,423
Stock compensation	3,363	2,909
Section 174 capitalization	26,203	22,759
ROU lease liability	2,018	2,061
Available-for-sale securities		(14)
Other	1,670	2,441
Total deferred tax asset	92,871	68,025
Valuation allowance	(90,181)	(64,744)
Net deferred tax assets:	2,690	3,281
Deferred tax liabilities:
Intangibles (non-goodwill)	(4)	(2)
Available-for-sale securities	(82)
Property, plant and equipment	(663)	(1,144)
Accretion	(236)	(307)
ROU asset	(1,705)	(1,828)
Total deferred tax liabilities	$ (2,690)	$ (3,281)

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