Property and Equipment, Net - Schedule (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment	$ 2,730	$ 2,729
Less—Accumulated depreciation and amortization	(2,225)	(2,066)
Total	505	663
Laboratory equipment, computers and software
Property, Plant and Equipment [Line Items]
Property and equipment	1,752	1,736
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment	214	214
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment	$ 764	$ 779