Property and Equipment (Details) - USD ($) $ in Thousands	11 Months Ended	12 Months Ended
Dec. 31, 2019	Dec. 31, 2020	Jan. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,542	$ 1,854
Less accumulated depreciation	1,024	1,129
Property and equipment, net	518	725
Depreciation expense	321	302	$ 409
Laboratory equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	638	759
Office and IT equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	654	804
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 250	$ 291

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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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