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Note 5 - Loss Per Share (Tables)
9 Months Ended
Sep. 30, 2015
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three Months Ended

September 30,

 

Nine Months Ended

September 30,

    2015   2014   2015   2014
Numerator:                                
Net loss available in basic and diluted calculation   $ (1,116,402 )   $ (1,115,221 )   $ (2,527,524 )   $ (4,468,170 )
                                 
Denominator:                                
Weighted average common shares outstanding-basic     3,936,126       2,984,335       3,435,700       2,967,483  
                                 
Effect of diluted stock options and warrants (1)     -       -       -       -  
                                 
Weighted average common shares outstanding-basic     3,936,126       2,984,335       3,435,700       2,967,483  
                                 
Loss per common share basic and diluted   $ (0.28 )   $ (0.37 )   $ (0.74 )   $ (1.51 )