Balance Sheet Components - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property and equipment	$ 9,805	$ 5,536
Less accumulated depreciation	(3,992)	(2,998)
Total	5,813	2,538
Construction in progress	4,715	6,576
Property and equipment, net	10,528	9,114
Lab Equipment
Property Plant And Equipment [Line Items]
Property and equipment	8,077	3,874
Office and Computer Equipment
Property Plant And Equipment [Line Items]
Property and equipment	507	456
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment	407	392
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment	$ 814	$ 814

Property plant and equipment before construction inprogress.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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