v3.25.4

Schedule of revenue recognition - sales revenue by product line (Details) - USD ($)	3 Months Ended		9 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2025	Nov. 30, 2024
Disaggregation of Revenue [Line Items]
Sales revenue	$ 5,004,370	$ 5,190,596	$ 15,299,839	$ 15,383,416
Fluxing Systems [Member]
Disaggregation of Revenue [Line Items]
Sales revenue	$ 222,000	$ 71,000	$ 583,000	$ 324,000
Sales revenue, percent	4.00%	1.00%	4.00%	2.00%
In-Line Coating Systems [Member]
Disaggregation of Revenue [Line Items]
Sales revenue	$ 1,844,000	$ 81,000	$ 6,428,000	$ 2,850,000
Sales revenue, percent	37.00%	2.00%	42.00%	19.00%
Multi-Axis Coating Systems [Member]
Disaggregation of Revenue [Line Items]
Sales revenue	$ 1,666,000	$ 3,563,000	$ 4,373,000	$ 8,158,000
Sales revenue, percent	33.00%	69.00%	29.00%	53.00%
OEM Systems [Member]
Disaggregation of Revenue [Line Items]
Sales revenue	$ 425,000	$ 259,000	$ 936,000	$ 796,000
Sales revenue, percent	9.00%	5.00%	6.00%	5.00%
Other [Member]
Disaggregation of Revenue [Line Items]
Sales revenue	$ 847,000	$ 1,217,000	$ 2,980,000	$ 3,255,000
Sales revenue, percent	17.00%	23.00%	19.00%	21.00%
Total [Member]
Disaggregation of Revenue [Line Items]
Sales revenue	$ 5,004,000	$ 5,191,000	$ 15,300,000	$ 15,383,000

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