Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Property and equipment
Gross property and equipment	$ 9,589	$ 9,178
Accumulated Depreciation	(7,103)	(6,536)
Net Property and Equipment	2,486	2,642
Depreciation expense	668	834
Leasehold Improvements
Property and equipment
Gross property and equipment	1,204	1,196
Machinery and Equipment
Property and equipment
Gross property and equipment	5,864	5,475
Information Technology & Office Equipment
Property and equipment
Gross property and equipment	1,845	1,831
Laboratory Equipment
Property and equipment
Gross property and equipment	$ 676	$ 676

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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