Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Restricted Stock (Details)

v3.21.1
Stockholders' Equity - Restricted Stock (Details) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Restricted stock    
Shares    
Restricted stock at beginning of period 179,505  
Granted 339,999 354,165
Vested (275,115) (168,272)
Cancelled (4,461) (6,388)
Restricted stock at end of period 239,928 179,505
Weighted Average Fair Value    
Restricted stock at beginning of period $ 5.99  
Granted 3.22 $ 5.97
Vested 4.27 5.90
Cancelled 7.42 7.42
Restricted stock at end of period $ 4.02 $ 5.99
Restricted stock | Vest on grant date    
Stockholders’ Equity    
Vesting percentage 50.00%  
Restricted stock | Vest on first anniversary    
Stockholders’ Equity    
Vesting percentage 30.00%  
Restricted stock | Vest on each anniversary thereafter    
Stockholders’ Equity    
Vesting percentage 10.00%  
RSU's    
Shares    
Restricted stock at beginning of period 4,291 8,073
Vested (2,342) (3,104)
Cancelled (49) (678)
Restricted stock at end of period 1,900 4,291
Weighted Average Fair Value    
Restricted stock at beginning of period $ 30.29 $ 33.78
Vested 33.15 37.37
Cancelled 36.57 39.44
Restricted stock at end of period $ 26.60 $ 30.29
Increments for delivery of shares for time-based awards 25.00%