| Note 5 - Stockholders' Equity (Details) - Common Stock Warrants (USD $) | 1 Months Ended | 6 Months Ended | 
|---|---|---|
| Jan. 31, 2013 | Jun. 30, 2013 | |
| Common Stock Warrants [Abstract] | ||
| Outstanding at January 1, 2013 | 8,763,836 | 8,763,836 | 
| Outstanding at January 1, 2013 (in Dollars per Item) | 0.95 | 0.95 | 
| Issued | 4,600,842 | 4,600,842 | 
| Issued (in Dollars per share) | $ 1.75 | $ 1.75 | 
| Forfeited | (41,666) | |
| Forfeited (in Dollars per share) | $ 1.00 | |
| Exercised | (463,500) | |
| Exercised (in Dollars per share) | $ 0.13 | |
| Outstanding at June 30, 2013 | 12,859,512 | |
| Outstanding at June 30, 2013 (in Dollars per Item) | 1.20 | 1.27 | 
| X | ||||||||||
| 
- Details 
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| X | ||||||||||
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- Definition Number of warrants exercised during the reporting period. No definition available. 
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| X | ||||||||||
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- Definition Weighted average exercise price of warrants exercised during the reporting period. No definition available. 
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| X | ||||||||||
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- Definition Number of warrants forfeited during the reporting period. No definition available. 
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| X | ||||||||||
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- Definition Weighted average exercise price of warrants forfeited during the reporting period. No definition available. 
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| X | ||||||||||
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- Definition Number of warrants issued during the reporting period. No definition available. 
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| X | ||||||||||
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- Definition Weighted average exercise price of warrants issued during the reporting period. 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 warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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