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Schedule of customer concentrations and foreign sales (Details) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Total sales	$ 2,443,000	$ 1,667,000	$ 4,033,000	$ 3,606,000
Asia Pacific [Member]
Total sales	930,000	368,000	1,527,000	880,000
EMEA [Member]
Total sales	1,424,000	1,136,000	2,321,000	2,381,000
Latin America [Member]
Total sales	$ 89,000	$ 163,000	$ 185,000	$ 345,000

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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