Property and Equipment, Net - Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 12,113	$ 11,210
Less: Accumulated depreciation	(10,618)	(10,201)
Total property and equipment, net	1,495	1,009
Laboratory equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	46	46
Office equipment and furniture
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,923	2,433
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 9,144	$ 8,731