Note 9 - Fair Value Measurements - Summary of Changes In the Fair Value of Level 3 Financial Instruments (Details) - Warrant [Member] |
9 Months Ended |
|---|---|
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Mar. 31, 2017
USD ($)
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| Balance at June 30, 2016 | $ 24,000 |
| Change in fair value of warrant liability | (14,000) |
| Warrant exchange for common stock (Note 7) | (10,000) |
| Balance at March 31, 2017 |
| X | ||||||||||
- Definition Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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