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Net Loss Per Share Attributable to Common Stockholders- Calculation (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Calculation of basic and diluted net loss per common share    
Net loss attributable to common stockholders $ (14,733,780) $ (16,637,924)
Shares used to compute net loss per common share, basic and diluted (in shares) 10,951,178 6,153,139
Net loss per share attributable to common shareholders, basic and diluted $ (1.35) $ (2.70)