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Net Loss Per Share of Common Stock (Tables)
12 Months Ended
Dec. 31, 2018
Net Loss Per Share of Common Stock  
Computation of basic and diluted net loss per common share

The following table sets forth the computation of basic and diluted earnings per share for the years ended December 31, 2018, 2017 and 2016:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    

2018

    

2017

    

2016

 

Net loss

 

$

(48,273,633)

 

$

(33,281,068)

 

$

(31,809,838)

 

Basic and diluted net loss per common share

 

$

(1.18)

 

$

(1.13)

 

$

(1.50)

 

Basic and diluted weighted average common shares outstanding

 

 

41,044,621

 

 

29,395,756

 

 

21,256,312

 

 

 

 

 

 

 

 

 

 

 

 

 

Potentially dilutive securities outstanding

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    

2018

    

2017

    

2016

 

Warrants

 

 —

 

553,868

 

553,868

 

Stock options and restricted stock units

 

3,937,167

 

3,399,124

 

2,817,674