Note 10 - Share-based Compensation - Nonvested Share Activity (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2016 |
|
| Granted (in shares) | 19,482 | ||
| Granted (in dollars per share) | $ 6.93 | $ 8.30 | $ 11.53 |
| Canceled (forfeited/expired) (in shares) | (284,841) | ||
| Non-Vested [Member] | |||
| Nonvested June 30, 2017 (in shares) | 285,284 | ||
| Nonvested June 30, 2017 (in dollars per share) | $ 11.18 | ||
| Granted (in shares) | 19,482 | ||
| Granted (in dollars per share) | $ 6.93 | ||
| Vested (in shares) | (69,219) | ||
| Vested (in dollars per share) | $ 10.99 | ||
| Canceled (forfeited/expired) (in shares) | (127,375) | ||
| Canceled (forfeited/expired) (in dollars per share) | $ 11.40 | ||
| Nonvested at June 30, 2018 (in shares) | 108,172 | 285,284 | |
| Nonvested at June 30, 2018 (in dollars per share) | $ 10.27 | $ 11.18 | |