Note 5 - Stockholders' Equity - Non-vested Restricted Stock Unit Transactions for Common Stock (Details) - $ / shares |
9 Months Ended | |
|---|---|---|
Nov. 30, 2016 |
Nov. 30, 2015 |
|
| Outstanding non-vested restricted stock units (in shares) | 181,742 | 237,641 |
| Granted (in shares) | ||
| Vested (in shares) | (48,084) | (55,899) |
| Cancelled/forfeited (in shares) | (10,000) | |
| Outstanding non-vested restricted stock units (in shares) | 123,658 | 181,742 |
| Weighted average grant date fair value (in dollars per share) | $ 12.22 | $ 12.22 |
| Weighted average remaining vesting period (in years) (Year) | 2 years 171 days | 3 years 171 days |