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Note 13 - Subsequent Events (Details) (USD $) |  |  | 1 Months Ended
--- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Mar. 31, 2013 Subsequent Event | Mar. 31, 2013 Subsequent Event Richard H. Davis | Mar. 31, 2013 Subsequent Event John L. Hofmann
Subsequent Event [Line Items] |  |  |  |  |
Principal amount of additional Series A Secured Promissory Notes | $ 325,000 |  | $ 75,000 |  |
Number of warrants issued to purchase common stock | 6,050,999 | 4,294,999 | 75,000 | 1,000,000 | 500,000
Number of common stock issuable for warrants |  |  | 75,000 |  |
Exercise price of warrants | 1.12 | 0.88 |  | 0.03 | 0.03
Class of warrant or right warrants or rights exercisable period |  |  |  | 5 years | 5 years

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