Balance Sheet Details - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 1,651	$ 1,643
Less accumulated depreciation and amortization	(1,304)	(1,009)
Property and equipment, net	347	634
Laboratory Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,112	1,104
Computer Equipment and Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	215	215
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	178	178
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 146	$ 146

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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