Note 8 - Option Activity For Stock Option Plans (Details) - $ / shares
|
12 Months Ended |
Jun. 30, 2016 |
Jun. 30, 2015 |
| Employee Stock Option [Member] |
|
|
| Outstanding at, (in shares) |
147,609
|
|
| Outstanding at, (in dollars per share) |
$ 25.51
|
|
| Granted (in shares) |
55,875
|
|
| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
$ 9.64
|
|
| Forfeited/cancelled (in shares) |
(93,855)
|
|
| Forfeited/cancelled (in dollars per share) |
$ 27.02
|
|
| Expired (in shares) |
(5,251)
|
|
| Expired (in dollars per share) |
$ 41.47
|
|
| Outstanding at, (in shares) |
104,378
|
147,609
|
| Outstanding at, (in dollars per share) |
$ 14.85
|
$ 25.51
|
| Outstanding at, |
5 years 292 days
|
|
| Vested and Expected to Vest at June 30, 2016 (in shares) |
91,810
|
|
| Vested and Expected to Vest at June 30, 2016 (in dollars per share) |
$ 15.34
|
|
| Vested and Expected to Vest at June 30, 2016 |
5 years 255 days
|
|
| Exercisable at June 30, 2016 (in shares) |
61,271
|
|
| Exercisable at June 30, 2016 (in dollars per share) |
$ 16.15
|
|
| Exercisable at June 30, 2016 |
5 years 182 days
|
|
| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
$ 5.75
|
$ 12.40
|