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Schedule of customer concentrations and foreign sales (Details) - USD ($)	12 Months Ended
	Feb. 29, 2024	Feb. 28, 2023
Total sales	$ 8,822,000	$ 8,254,000
Asia Pacific [Member]
Total sales	3,268,000	3,260,000
Middle East [Member]
Total sales	4,333,000	3,448,000
Latin America [Member]
Total sales	$ 1,221,000	$ 1,546,000

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