Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Net operating loss carryforwards	$ 33,799	$ 25,034
Liability to licensor	4,159	4,159
Goodwill	2,683	2,938
Lease liability	176	517
Accrued compensation	556	746
Research credit carryforwards	13,221	10,379
Section 174 cost capitalization	36,951	31,220
Section 59(e) cost capitalization	7,350	8,400
Stock-based compensation	3,938	2,790
Other	5	4
Gross deferred tax assets	102,838	86,187
Less valuation allowance	(102,655)	(85,642)
Total deferred tax assets	183	545
Deferred tax liabilities:
Fixed assets	(75)	(231)
Operating lease right-of-use asset	(108)	(314)
Total deferred tax liabilities	(183)	(545)
Net deferred tax assets	$ 0	$ 0