Income Taxes - Significant Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Net operating loss carryforwards	$ 80,368	$ 69,308
Research and development credits	18,861	12,840
Accruals & reserves	1,071	901
Stock compensation	3,269	1,198
Amortization	716	768
Lease liability	2,132	2,648
Capitalized research and development expenses	33,861	28,023
Depreciation	70	0
Total deferred tax assets	140,348	115,686
Valuation allowance	(139,776)	(114,972)	$ (98,926)
Net deferred tax assets	572	714
Deferred tax liabilities:
Depreciation	0	(71)
Right of use asset	(572)	(643)
Total deferred tax liabilities	(572)	(714)
Net deferred taxes	$ 0	$ 0