XML 31 R18.htm IDEA: XBRL DOCUMENT v3.21.2
Net Loss Per Share (Tables)
6 Months Ended
Jun. 30, 2021
Net Loss Per Share  
Calculation of Historical Outstanding Dilutive Securities Not Included in Diluted Loss per Share

Three Months Ended

Six Months Ended

June 30, 

June 30, 

2021

    

2020

2021

    

2020

Outstanding options to purchase common stock

2,401,024

 

2,216,697

2,901,430

 

1,937,863

Outstanding warrants to purchase common stock

 

14,406

 

12,654

Total potentially dilutive shares excluded from loss per share

2,401,024

 

2,231,103

2,901,430

 

1,950,517