INVENTORIES (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials, parts and supplies	$ 2,421,000	$ 1,189,000
Work-in-progress	1,107,000	1,923,000
Finished products	1,954,000	262,000
Total inventories	$ 5,482,000	$ 3,374,000

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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