PROPERTY AND EQUIPMENT, SCHEDULE (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property and equipment
Property and equipment	$ 703	$ 626
Less accumulated depreciation and amortization	(576)	(541)
Property and equipment, net	127	85
Computer hardware
Property and equipment
Property and equipment	52	35
Computer Software [Member]
Property and equipment
Property and equipment	5	5
Research and lab equipment
Property and equipment
Property and equipment	580	520
Leasehold improvements
Property and equipment
Property and equipment	$ 66	$ 66

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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