Balance Sheet Details - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 1,651	$ 1,643
Less accumulated depreciation and amortization	(1,163)	(1,009)
Property and equipment, net	488	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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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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