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Note 9 - Subsequent Events (Details Textual) - The 2015 Unit Offering [Member] - USD ($)
Apr. 01, 2016
Mar. 31, 2016
Jan. 31, 2015
Jan. 15, 2015
Subsequent Event [Member]        
Proceeds from Convertible Debt $ 180,000      
Debt Instrument, Convertible, Conversion Price $ 0.35      
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 0.45      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 514,286      
Debt Instrument, Convertible, Conversion Price   $ 0.35    
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 0.30  
Aggregate Amount Invested       $ 3,106,713
Minimum Proceeds Required For Stock Registration       $ 3,000,000