Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock Based Compensation - Nonvested (Details)

v3.20.4
Stockholders' Equity and Stock Based Compensation - Nonvested (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
installment
$ / shares
shares
Dec. 31, 2019
USD ($)
installment
$ / shares
shares
Weighted Average Grant Date Fair Value    
Share-based Payment Arrangement, Expensed and Capitalized, Amount | $ $ 0.0  
Selling, general and administrative expenses    
Weighted Average Grant Date Fair Value    
Share-based compensation expense | $ $ 1.3 $ 0.8
Restricted stock    
Shares    
Nonvested shares at the beginning of the period | shares 63,922 96,744
Granted (in shares) | shares 134,165 32,905
Vested (in shares) | shares (70,613) (49,197)
Forfeited (in shares) | shares (4,682) (16,530)
Nonvested shares at the end of the period | shares 122,792 63,922
Weighted Average Grant Date Fair Value    
Nonvested shares at the beginning of period (in dollars per share) | $ / shares $ 14.94 $ 15.67
Granted (in dollars per share) | $ / shares 14.31 11.97
Vested (in dollars per share) | $ / shares 16.36 14.53
Forfeited (in dollars per share) | $ / shares 16.85 14.52
Nonvested shares at the end of period (in dollars per share) | $ / shares $ 13.37 $ 14.94
Unrecognized compensation cost (in dollars) | $ $ 1.5  
Weighted average period for recognition of unrecognized compensation cost 2 years 7 months 6 days  
Restricted stock | Maximum    
Shares    
Number of equal quarterly installments for vesting of awards | installment 16 16