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SCHEDULE OF SEGMENTS (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Segment Reporting Information [Line Items]          
Assets $ 33,845,000 $ 36,783,000 $ 33,845,000 $ 36,783,000 $ 35,025,000
Revenue 6,345,000 5,069,000 11,267,000 13,764,000  
Operating (loss) income (898,000) (1,232,000) (2,526,000) (1,420,000)  
Pretax (loss) income (761,000) (1,103,000) (2,233,000) (1,142,000)  
Depreciation and amortization 154,000 227,000 307,000 392,000  
Purchase of property, plant & equipment 105,000 78,000 182,000 225,000  
Operating Segments [Member] | CVD Equipment [Member]          
Segment Reporting Information [Line Items]          
Assets 29,368,000 32,139,000 29,368,000 32,139,000  
Revenue 4,107,000 3,134,000 7,054,000 8,979,000  
Operating (loss) income (729,000) (445,000) (2,173,000) (267,000)  
Pretax (loss) income (743,000) (445,000) (2,188,000) (265,000)  
Depreciation and amortization 141,000 136,000 283,000 267,000  
Purchase of property, plant & equipment 101,000 78,000 178,000 215,000  
Operating Segments [Member] | SDC [Member]          
Segment Reporting Information [Line Items]          
Assets 4,310,000 4,189,000 4,310,000 4,189,000  
Revenue 2,315,000 1,795,000 4,246,000 4,107,000  
Operating (loss) income 714,000 363,000 1,346,000 994,000  
Pretax (loss) income 714,000 364,000 1,346,000 996,000  
Depreciation and amortization 13,000 12,000 24,000 24,000  
Purchase of property, plant & equipment 4,000 4,000 10,000  
Operating Segments [Member] | CVD Materials [Member]          
Segment Reporting Information [Line Items]          
Assets 222,000 483,000 222,000 483,000  
Revenue 55,000 342,000 114,000 1,009,000  
Operating (loss) income (45,000) (224,000) [1] (71,000) (143,000) [2]  
Pretax (loss) income (45,000) (203,000) [1] (71,000) (95,000) [2]  
Depreciation and amortization 79,000 101,000  
Purchase of property, plant & equipment  
Intersegment Eliminations [Member]          
Segment Reporting Information [Line Items]          
Assets (55,000) (28,000) (55,000) (28,000)  
Revenue (132,000) (202,000) (147,000) (331,000)  
Operating (loss) income (8,000) (28,000) 10,000 (28,000)  
Pretax (loss) income (8,000) (28,000) 10,000 (28,000)  
Depreciation and amortization  
Purchase of property, plant & equipment  
Intersegment Eliminations [Member] | CVD Equipment [Member]          
Segment Reporting Information [Line Items]          
Revenue (132,000) (138,000) (147,000) (266,000)  
Intersegment Eliminations [Member] | SDC [Member]          
Segment Reporting Information [Line Items]          
Revenue 0 64,000 0 64,000  
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]          
Segment Reporting Information [Line Items]          
Assets  
Revenue  
Operating (loss) income (830,000) (898,000) (1,638,000) (1,976,000)  
Pretax (loss) income (679,000) (791,000) (1,330,000) (1,750,000)  
Depreciation and amortization  
Purchase of property, plant & equipment  
[1] Includes loss on sale of Tantaline of $0.2 million and impairment charge related to MesoScribe fixed assets of $0.1 million.
[2] Includes loss on sale of Tantaline of $0.2 million and impairment charge related to MesoScribe fixed assets of $0.1 million.