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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