Note 2 - Calculation for Basic and Diluted Earnings Per Share (Details) - shares
|
12 Months Ended |
Jun. 30, 2016 |
Jun. 30, 2015 |
| Convertible Debt Securities [Member] |
|
|
|
| Common stock equivalents of convertible debentures (in shares) |
3,676,471
|
|
|
| Vested Series A warrants [Member] |
|
|
|
| Common stock equivalents of convertible debentures (in shares) |
404,412
|
|
|
| Unvested Series A warrants [Member] |
|
|
|
| Common stock equivalents of convertible debentures (in shares) |
698,529
|
[1] |
|
| Warrant, Other [Member] |
|
|
|
| Common stock equivalents of convertible debentures (in shares) |
3,725,782
|
|
252,620
|
| Employee Stock Option [Member] |
|
|
|
| Common stock equivalents of convertible debentures (in shares) |
104,378
|
|
147,609
|
| Restricted Stock Units (RSUs) [Member] |
|
|
|
| Common stock equivalents of convertible debentures (in shares) |
63,566
|
|
72,589
|
| Common stock equivalents of convertible debentures (in shares) |
8,673,138
|
|
472,818
|
|
|