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LOSS PER SHARE
9 Months Ended
Sep. 30, 2020
Earnings Per Share [Abstract]  
LOSS PER SHARE

11. LOSS PER SHARE

 

The following outstanding potentially dilutive securities have been excluded from the calculation of diluted net loss per share for the periods presented due to their anti-dilutive effect:

 

 

   As of September 30, 
   2020   2019 
Stock options   5,038,914    6,357,029 
Restricted stock   3,874,945    2,027,100 
Common stock warrants   10,638,298    15,235