Note 6 - Change in Fair Value of Derivative Liabilities (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Balance | $ 0 | |
| Addition of derivative obligation at fair value on date of issuance | 4,282,000 | |
| Reclassification of derivative obligation for exercised warrants | (58,000) | |
| Extinguishment of derivative obligation | (159,000) | |
| Change in fair value of derivative obligation | (3,395,000) | |
| Balance | $ 670,000 | $ 0 |