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Net Loss per Share
3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Net Loss per Share
5. Net Loss per Share
Basic net loss per share is computed by
dividing
net loss by the weighted
average
number of shares of common stock outstanding for the period. The Company’s potentially dilutive shares, which include outstanding common stock options, inducement stock options, unvested restricted stock and warrants, have not been included in the computation of diluted net loss per share for any of the periods presented as the result would be anti-dilutive.
Such potentially dilutive shares of common stock consisted of the following as of March 31, 2021 and 2020, respectively: 
 
    
March 31,
 
    
2021
    
2020
 
Stock options
     10,738,378        6,676,879  
Inducement stock options
     463,333        1,030,000  
Unvested restricted stock
     1,074,606        1,495,536  
Warrants
     22,272,727        22,272,727  
    
 
 
    
 
 
 
       34,549,044        31,475,142