Balance Sheet Components - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Balance Sheet Components [Line Items]
Less: accumulated amortization and depreciation	$ (882)	$ (844)
Property and equipment, net	506	595
Computer Equipment
Balance Sheet Components [Line Items]
Property and equipment	61	66
Computer software
Balance Sheet Components [Line Items]
Property and equipment	38	32
Lab Equipment
Balance Sheet Components [Line Items]
Property and equipment	1,031	1,076
Leasehold Improvement
Balance Sheet Components [Line Items]
Property and equipment	37	38
Office Furniture
Balance Sheet Components [Line Items]
Property and equipment	$ 221	$ 227

Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

Amount, after accumulated depreciation, depletion, and amortization, of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

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+ Details