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REVENUE RECOGNITION (Details) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Disaggregation of Revenue [Line Items]
Sales revenue	$ 3,763,329	$ 4,070,467	$ 7,814,864	$ 7,714,935
Fluxing Systems
Disaggregation of Revenue [Line Items]
Sales revenue	$ 399,000	$ 117,000	$ 707,000	$ 476,000
Sales revenue, percent	11.00%	3.00%	9.00%	6.00%
Integrated Coating Systems
Disaggregation of Revenue [Line Items]
Sales revenue	$ 425,000	$ 565,000	$ 594,000	$ 720,000
Sales revenue, percent	11.00%	14.00%	8.00%	9.00%
Multi-Axis Coating Systems
Disaggregation of Revenue [Line Items]
Sales revenue	$ 1,491,000	$ 1,891,000	$ 3,470,000	$ 3,970,000
Sales revenue, percent	40.00%	46.00%	44.00%	52.00%
OEM Systems
Disaggregation of Revenue [Line Items]
Sales revenue	$ 762,000	$ 845,000	$ 1,316,000	$ 1,171,000
Sales revenue, percent	20.00%	21.00%	17.00%	15.00%
Other Product Line
Disaggregation of Revenue [Line Items]
Sales revenue	$ 686,000	$ 652,000	$ 1,728,000	$ 1,378,000
Sales revenue, percent	18.00%	16.00%	22.00%	18.00%
Total Product Line
Disaggregation of Revenue [Line Items]
Sales revenue	$ 3,763,000	$ 4,070,000	$ 7,815,000	$ 7,715,000

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