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Note 11 - Subsequent Events (Details) (USD $) | 3 Months Ended | 9 Months Ended | 12 Months Ended | 147 Months Ended | 0 Months Ended | 1 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2013 | Mar. 31, 2013 | Sep. 30, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2013 | May 14, 2013 Series B Warrants [Member] | Jan. 17, 2013 Series B Warrants [Member] | May 31, 2013 Series B Warrants [Member] | Jan. 31, 2013 Series B Warrants [Member] | May 13, 2013 Series B Warrants [Member] | Jan. 16, 2013 Series B Warrants [Member] | Dec. 31, 2012 Series B Warrants [Member]
Note 11 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item) |  |  |  |  |  |  | 0.50 | 0.60 |  |  | 0.60 | 0.75 | 0.75
Class of Warrant or Right, Exercises |  |  | (2,933,333) | 0 |  |  | 1,166,666 | 1,766,667 |  | 1,766,667 |  |  |
Proceeds from Warrant Exercises (in Dollars) |  |  |  |  |  |  | $ 583,333 | $ 1,060,000 | $ 583,333 | $ 1,060,000 |  |  |
Class of Warrant or Right, Number of Remaining Shares Whose Expiration Was Extended |  |  |  |  |  |  |  | 1,166,667 |  |  |  |  |
Other General and Administrative Expense (in Dollars) | $ 19,617 | $ 218,551 | $ 238,169 |  | $ 152,126 | $ 390,295 |  |  |  | $ 218,551 |  |  |

X
- Definition Number of warrants exercised during the reporting period. + References No definition available. + Details
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- Definition Exercise price per share or per unit 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)(4)) -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 -Subparagraph 4 -Article 4 + Details
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- Definition The sum of expenses not otherwise specified in the taxonomy for managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References No definition available. + Details
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