PROPERTY PLANT AND EQUIPMENT NET (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
PROPERTY PLANT AND EQUIPMENT NET
Leasehold improvements	$ 389	$ 394
Equipment	4,822	4,977
Sales demonstration equipment	969	1,396
Property and equipment gross	6,180	6,767
Less accumulated depreciation	5,136	5,408
Property and equipment, net	$ 1,044	$ 1,359

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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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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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