Income Taxes - Schedule of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Net operating loss carryforwards	$ 67,818	$ 58,324
Capital loss carryforwards	0	7,298
Start-up costs	9,699	9,699
Accruals and reserves	672	276
Intellectual property	4,074	4,565
Stock-based compensation	3,063	2,873
Capitalization of research and development expense	20,800	18,702
Deferred revenue	1,784	1,293
Tax credits	11,641	9,324
Lease liabilities	966	977
Total deferred tax assets	120,517	113,331
Valuation allowance	(119,616)	(112,413)
Deferred tax assets, net of valuation allowance	901	918
Deferred tax liabilities:
Lease right-of-use assets	(901)	(918)
Net deferred tax assets	$ 0	$ 0