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Customer Concentrations and Foreign Sales - Schedule of Customer Concentrations and Foreign Sales (Details) - USD ($)
3 Months Ended 6 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2021
Aug. 31, 2020
Total sales $ 2,517,000 $ 1,325,000 $ 4,934,000 $ 3,998,000
Asia Pacific (APAC)        
Total sales 1,631,000 455,000 2,853,000 2,377,000
Europe, Middle East, Asia (EMEA)        
Total sales 593,000 767,000 1,436,000 1,198,000
Latin America        
Total sales $ 293,000 $ 103,000 $ 645,000 $ 423,000