Balance Sheet Components - Schedule of Property, Plant and Equipment Net (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 11,190	$ 11,069
Accumulated depreciation	(4,385)	(3,584)
Property, plant and equipment, net	6,805	7,485
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,117	2,117
Laboratory Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,170	3,130
Computer Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	728	707
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	853	864
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 4,322	$ 4,251