XML 37 R22.htm IDEA: XBRL DOCUMENT v3.22.0.1
Net Loss Per Share of Common Stock (Tables)
12 Months Ended
Dec. 31, 2021
Net Loss Per Share of Common Stock  
Potentially dilutive securities outstanding

    

2021

    

2020

    

2019

Stock options and restricted stock units

 

7,908,122

 

6,143,594

 

5,106,493