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Note 5 - Stockholders' Equity (Details) (USD $)
 1 Months Ended 3 Months Ended 6 Months Ended 144 Months Ended 3 Months Ended 6 Months Ended 0 Months Ended 1 Months Ended
May 31, 2013
Jan. 31, 2013
Jun. 30, 2013
Mar. 31, 2013
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2013
Employee Stock Option [Member]
Jun. 30, 2012
Employee Stock Option [Member]
Jun. 30, 2013
Employee Stock Option [Member]
Jun. 30, 2012
Employee Stock Option [Member]
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]
Note 5 - Stockholders' Equity (Details) [Line Items]                                    
Stock Issued During Period, Shares, New Issues (in Shares) 1,166,666 1,766,667                                
Proceeds from Warrant Exercises                         $ 583,333 $ 1,060,000 $ 583,333 $ 1,060,000    
Share-based Compensation         321,420 162,576 6,991,235   35,978 81,000 83,252 162,576            
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized                 168,766   168,766              
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition                     1 year 292 days              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)                         0.50 0.60     0.60 0.75
(in Shares)         2,933,333               1,166,666 1,766,667        
Class of Warrant or Right, Outstanding (in Shares)     8,292,226   8,292,226   8,292,226 11,225,559           1,166,667        
Other General and Administrative Expense     $ 19,617 $ 218,551