PROPERTY PLANT AND EQUIPMENT NET (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
PROPERTY PLANT AND EQUIPMENT NET
Leasehold improvements	$ 387	$ 404
Equipment	4,860	4,683
Sales demonstration equipment	1,006	1,066
Property and equipment gross	6,253	6,153
Less accumulated depreciation	5,298	5,081
Property and equipment, net	$ 955	$ 1,072

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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 of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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