Note 3 - Revenue Recognition - Schedule of Sales Returns and Allowances and Accrual Activity (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2025 |
Aug. 31, 2026 |
Aug. 31, 2025 |
|
| Beginning Balance | $ 227,000 | $ 292,000 | $ 265,000 | $ 310,000 |
| Accrued Allowances and Adjustments | 6,000 | 1,000 | (32,000) | (17,000) |
| Ending Balance | $ 233,000 | $ 293,000 | $ 233,000 | $ 293,000 |