Note 13 - Stock Option and Incentive Plan (Details) - Stock Option Activity - $ / shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Stock Option Activity [Abstract] | ||
| Outstanding beginning balance | 6,618,233 | 679,744 |
| Outstanding beginning balance | $ 0.11 | $ 2.82 |
| Granted during the year | 30,456,250 | 6,400,000 |
| Granted during the year | $ 0.02 | $ 0.03 |
| Forfeited/cancelled/expired during the year | (40,000) | (461,511) |
| Forfeited/cancelled/expired during the year | $ 5.15 | $ 3.29 |
| Outstanding at end of year | 37,034,483 | 6,618,233 |
| Outstanding at end of year | $ 0.03 | $ 0.11 |
| Exercisable at end of year | 5,934,303 | 2,330,650 |
| Exercisable at end of year | $ 0.09 | $ 0.28 |
| Outstanding and expected to vest | 36,916,502 | 6,191,212 |
| Outstanding and expected to vest | $ 0.03 | $ 0.11 |
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| 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 Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
- 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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- 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 | ||||||||||
- Definition As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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- References No definition available.
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