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