Note 9 - Warrant Derivative Liability (Details Textual) - USD ($) |
12 Months Ended | ||||
|---|---|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 01, 2016 |
May 31, 2016 |
Dec. 31, 2012 |
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| Gain (Loss) on Derivative Instruments, Net, Pretax | $ 14,000 | $ 11,000 | |||
| Class of Warrant or Right, Exchange of Warrants Outstanding, Percent | 93.00% | ||||
| Warrant Liabilities, Current, Weighted Average Price | $ 0.10 | ||||
| Warrant Liabilities, Current | $ 24,000 | ||||
| Share Price | $ 0.43 | $ 0.50 | $ 0.40 | ||
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 297,035 | 297,035 | |||
| Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 1.55 | $ 2.69 | $ 4.10 | ||
| X | ||||||||||
- Definition The percent of outstanding warrants that have been exchanged in accordance with certain agreements. No definition available.
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| X | ||||||||||
- Definition Instruments classified as derivative liabilities are recorded initially at their estimated fair value and are re-measured each reporting period (or upon reclassification) and the change in fair value is recorded on our condensed consolidated statement of operations in other (income) expense. No definition available.
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| X | ||||||||||
- Definition Instruments classified as derivative liabilities are recorded initially at their average fair value per share and are re-measured each reporting period (or upon reclassification) and the change in fair value is recorded on our condensed consolidated statement of operations in other (income) expense. No definition available.
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| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| 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
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| 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
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| X | ||||||||||
- Definition Price of a single share of a number of saleable stocks of a company. No definition available.
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