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Net Loss Per Share (Tables)
9 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
Schedule of Common Stock Equivalents Excluded from Computation of Diluted Loss per Share

 

Nine months ended September 30,


 

 

2021

 

 

2020


Outstanding stock options

 

 

 5,131,263

 

 

 

 3,693,943


Nonvested restricted stock and unit awards


1,153,364

 


1,230,651


Stock purchase warrants

 


216,944

 


715,199





6,501,571


5,639,793
 
Schedule of stock purchase warrants outstanding
Number of Warrants

 Exercise Price

Expiration Date

22,253

$

5.68

3/30/2022

17,066

$

12.60

6/30/2022
151,364 $ 12.60 8/18/2022
14,286 $

12.60

8/31/2022
11,975 $ 15.30 12/22/2025
216,944