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Supplemental Balance Sheet Information - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,358	$ 6,180
Less: accumulated depreciation and amortization	(3,562)	(3,650)
Property and equipment, net	1,796	2,530
Scientific equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,265	6,087
Computers and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	63	63
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 30	$ 30

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- Definition

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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