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Note 14 - Basic and Diluted Net Loss Per Share - Summary of Basic and Diluted Net Loss Per Share (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Basic and dilutive numerator:    
Net Income (Loss) Available to Common Stockholders, Basic $ (23,820,675) $ (14,352,824)
Denominator:    
Weighted-average shares outstanding (in shares) 18,614,968 14,299,473
Net loss per share - basic and diluted (in dollars per share) $ (1.28) $ (1)