Note 8 - Warrant Derivative Liability (Details Textual) - USD ($) |
12 Months Ended | ||||
|---|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 01, 2016 |
May 31, 2016 |
Dec. 31, 2012 |
|
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 2,907,347 | 2,907,347 | 2,970,347 | ||
| Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 0.15 | $ 0.15 | $ 0.27 | $ 0.41 | |
| Share Price | $ 0.05 | $ 0.04 | |||
| Gain (Loss) on Derivative Instruments, Net, Pretax | $ 11,000 | $ 548,000 | |||
| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Price of a single share of a number of saleable stocks of a company. No definition available.
|