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Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales (Details) - USD ($)
3 Months Ended
May 31, 2022
May 31, 2021
Total sales $ 2,114,000 $ 2,416,000
Asia Pacific (APAC)    
Total sales 706,000 1,222,000
Europe, Middle East, Asia (EMEA)    
Total sales 990,000 842,000
Latin America    
Total sales $ 418,000 $ 352,000