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Property and Equipment, Net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 5,773	$ 7,950
Less accumulated depreciation and amortization	(4,819)	(5,659)
Property and equipment, net	954	2,291
Laboratory equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,790	2,659
Software and computer equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	576	548
Machinery and equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	653	1,809
Furniture and fixtures [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	198	211
Vehicles [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	333	417
Leasehold improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,223	$ 2,306

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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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