Balance Sheet Components - Schedule of property and equipment, net (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Property, Plant and Equipment [Line Items]
Less: accumulated depreciation	$ (1,706)	$ (1,526)
Property and equipment, net	2,234	1,872
Laboratory equipment
Property, Plant and Equipment [Line Items]
Property equipment, gross	2,667	2,125
Office equipment and furniture
Property, Plant and Equipment [Line Items]
Property equipment, gross	453	453
Computer software and equipment
Property, Plant and Equipment [Line Items]
Property equipment, gross	574	574
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property equipment, gross	$ 246	$ 246

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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