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SEGMENT REPORTING (Details Narrative)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) Segment	Sep. 30, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | Segment			3
Sales revenue	$ 6,234,000	$ 8,119,000	$ 19,998,000	$ 18,579,000
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales revenue	(223,000)	(71,000)	(554,000)	(497,000)
Intersegment Eliminations [Member] | SDC [Member]
Segment Reporting Information [Line Items]
Sales revenue	200,000	$ 72,000	600,000	$ 500,000
Intersegment Eliminations [Member] | CVD Equipment [Member]
Segment Reporting Information [Line Items]
Sales revenue	$ 39,000		$ 100,000

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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