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Note 5 - Stockholders' Equity (Details) - Stockholders' Equity Note, Warrants (USD $) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012
Stockholders' Equity Note, Warrants [Abstract] |  |
Outstanding (in Shares) | 11,225,559 | 1,870,559
Outstanding (in Dollars per share) | $ 2.06 | $ 7.96
Exercisable at September 30, 2013 | 8,292,226 | 8,290,376
Exercisable at September 30, 2013 (in Dollars per share) | $ 2.53 | $ 2.44
Exercised | (2,933,333) | 0
Exercised (in Dollars per share) | $ 0.56 | $ 0
Outstanding (in Shares) | 8,292,226 | 11,225,559
Outstanding (in Dollars per share) | $ 2.53 | $ 2.06

X
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X
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- Details
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- Definition Number of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Article 4 + Details
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