Note 11 - Stock Option Plan and Stock Incentive Plan (Details) - Stock Option Activity - $ / shares |
9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2012 |
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| Stock Option Activity [Abstract] | ||||
| Outstanding | 37,034,483 | 6,618,233 | 679,744 | |
| Outstanding | $ 0.03 | $ 0.11 | $ 2.82 | |
| Forfeited/cancelled/expired | 37,034,483 | (40,000) | (461,511) | |
| Forfeited/cancelled/expired | $ 0.03 | $ 5.15 | $ 3.29 | |
| X | ||||||||||
- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Weighted average price of options that were either forfeited or expired. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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