SCHEDULE OF SEGMENTS (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2024		Sep. 30, 2023	Sep. 30, 2024		Sep. 30, 2023		Dec. 31, 2023
Segment Reporting Information [Line Items]
Assets	$ 31,846,000		$ 37,227,000	$ 31,846,000		$ 37,227,000		$ 35,025,000
Revenue	8,194,000		6,234,000	19,462,000		19,998,000
Operating (loss) income	77,000		(990,000)	(2,451,000)		(2,410,000)
Pretax (loss) income	208,000		(753,000)	(2,025,000)		(1,895,000)
Depreciation and amortization	169,000		153,000	476,000		545,000
Purchase of property, plant & equipment	37,000		83,000	219,000		308,000
Operating Segments [Member] | CVD Equipment [Member]
Segment Reporting Information [Line Items]
Assets	27,270,000		32,915,000	27,270,000		32,915,000
Revenue	5,681,000		4,795,000	12,737,000		13,774,000
Operating (loss) income	(736,000)	[1]	(323,000)	(2,884,000)	[2]	(581,000)
Pretax (loss) income	(741,000)	[1]	(262,000)	(2,894,000)	[2]	(518,000)
Depreciation and amortization	157,000		137,000	441,000		404,000
Purchase of property, plant & equipment	30,000		83,000	209,000		298,000
Operating Segments [Member] | SDC [Member]
Segment Reporting Information [Line Items]
Assets	3,805,000		4,237,000	3,805,000		4,237,000
Revenue	2,005,000		1,572,000	6,252,000		5,679,000
Operating (loss) income	538,000		436,000	1,884,000		1,430,000
Pretax (loss) income	538,000		434,000	1,884,000		1,430,000
Depreciation and amortization	12,000		12,000	35,000		36,000
Purchase of property, plant & equipment	7,000			10,000		10,000
Operating Segments [Member] | CVD Materials [Member]
Segment Reporting Information [Line Items]
Assets	836,000		177,000	836,000		177,000
Revenue	661,000		90,000	775,000		1,009,000
Operating (loss) income	1,104,000	[3]	(35,000)	1,034,000	[4]	(178,000)	[5]
Pretax (loss) income	1,104,000	[3]	(31,000)	1,034,000	[4]	(126,000)	[5]
Depreciation and amortization			4,000			105,000
Purchase of property, plant & equipment
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Assets	(65,000)		(102,000)	(65,000)		(102,000)
Revenue	(153,000)		(223,000)	(302,000)		(554,000)
Operating (loss) income	18,000		(76,000)	28,000		(104,000)
Pretax (loss) income	18,000		(76,000)	28,000		(104,000)
Depreciation and amortization
Purchase of property, plant & equipment
Intersegment Eliminations [Member] | CVD Equipment [Member]
Segment Reporting Information [Line Items]
Revenue	(151,000)		(184,000)	(298,000)		(450,000)
Intersegment Eliminations [Member] | SDC [Member]
Segment Reporting Information [Line Items]
Revenue	5,000		39,000	5,000		104,000
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Segment Reporting Information [Line Items]
Assets
Revenue
Operating (loss) income	(847,000)		(992,000)	(2,513,000)		(2,977,000)
Pretax (loss) income	(711,000)		(818,000)	(2,075,000)		(2,577,000)
Depreciation and amortization
Purchase of property, plant & equipment

[1] Includes a $1.0 million non-cash charge to reduce certain inventory to net realizable value – see Note 5.

[2] Includes a $1.0 million non-cash charge to reduce certain inventory to net realizable value – see Note 5.

[3] Includes gain on sale of equipment of $0.6 million related to MesoScribe – see Note 11.

[4] Includes gain on sale of equipment of $0.6 million related to MesoScribe – see Note 11.

[5] Includes loss on sale of Tantaline of $0.2 million and impairment charge related to MesoScribe fixed assets of $0.1 million – see Note 11.