Note 9 - Stock Compensation Plans - Restricted Stock Unit Awards Outstanding Under the Plans (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Feb. 29, 2020 |
Feb. 28, 2019 |
Feb. 28, 2018 |
|
| Outstanding non-vested restricted stock units at beginning of year: (in shares) | 25,002 | 77,594 | 123,658 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 280,000 | 0 | |
| Vested (in shares) | (38,835) | (49,058) | (44,064) |
| Cancelled/forfeited (in shares) | (612) | (3,534) | (2,000) |
| Outstanding non-vested restricted stock units as of February 28: (in shares) | 265,555 | 25,002 | 77,594 |
| Weighted average grant date fair value (in dollars per share) | $ 9.39 | $ 12.05 | $ 12.16 |
| Weighted average remaining vesting period (Year) | 4 years 204 days | 138 days | 1 year 98 days |