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Note 11 - Subsequent Events (Detail) (USD $)
 12 Months Ended 1 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Jan. 31, 2013
Series B Warrants [Member]
Jan. 17, 2013
Series B Warrants [Member]
Dec. 31, 2012
Series B Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)       0.60 0.75
Class of Warrant or Right, Exercises 0   1,766,667    
Proceeds from Warrant Exercises (in Dollars)     $ 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)   $ 152,126 $ 218,551