Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Restricted Stock Units (Details)

v3.21.2
Stock Based Compensation - Restricted Stock Units (Details) - Restricted Stock Awards - $ / shares
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Restricted Stock Award, Number of Shares    
Unvested RSUs at December 31, 2020 (in shares) 155,833  
Vested (in shares) (77,917)  
Unvested RSUs at June 30, 2021 (in shares) 77,916  
Weighted average grant date fair value    
Unvested RSUs balance (in dollars per share) $ 4.91 $ 4.91
Vested (in dollars per share)