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Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2018
Net Loss Per Share of Common Stock  
Computation of basic and diluted net loss per common share

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended September 30, 

 

Nine Months Ended September 30, 

 

    

2018

 

2017

    

2018

 

2017

Net loss

 

$

(11,575,111)

 

$

(7,950,101)

 

$

(34,366,718)

 

$

(24,023,210)

Basic and diluted net loss per common share

 

$

(0.27)

 

$

(0.24)

 

$

(0.85)

 

$

(0.86)

Basic and diluted weighted average common shares outstanding

 

 

43,069,282

 

 

32,724,010

 

 

40,345,071

 

 

27,814,781

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Potentially dilutive securities outstanding

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    

2018

    

2017

Warrants

 

 

 —

 

 

553,868

Stock options and restricted stock units

 

 

3,976,362

 

 

3,421,124