Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 6,507	$ 6,487
Less: accumulated depreciation	1,515	1,472
Property, plant and equipment, net	4,992	5,015
Buildings and Improvements
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	196	196
Furniture, Office and Computer Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	952	952
Manufacturing and Laboratory Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	717	717
Construction in Progress
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 4,642	$ 4,622

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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