v3.26.3
Note 6 - Disaggregation of Revenue and Major Customers - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Details) - USD ($)
3 Months Ended 6 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2026
Aug. 31, 2025
Net sales $ 5,657,000 $ 3,986,000 $ 11,093,000 $ 6,686,000
Europe and Australia [Member]        
Net sales 294,000 100,000 542,000 133,000
Canada and Latin America [Member]        
Net sales 0 0 0 0
Far East and Middle East [Member]        
Net sales 0 18,000 0 29,000
UNITED STATES        
Net sales $ 5,363,000 $ 3,868,000 $ 10,551,000 $ 6,524,000