Annual report pursuant to Section 13 and 15(d)

Stock - Based Compensation - Stock Award Activity (Details)

v3.19.3.a.u2
Stock - Based Compensation - Stock Award Activity (Details) - Stock Awards - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Outstanding, beginning of the year (in shares) 142,174 131,667 121,302
Forfeited (in shares)   (3,245)  
Outstanding, end of the year (in shares) 100,775 142,174 131,667
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Outstanding, beginning of the year, weighted average grant date fair value (in dollars per share) $ 11.45 $ 10.69 $ 10.03
Forfeited/Canceled (in dollars per share)   10.96  
Outstanding, end of the year, weighted average grant date fair value (in dollars per share) $ 13.28 $ 11.45 $ 10.69
February 08, 2017      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Granted (in shares)     44,687
Vested (in shares)     (34,322)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Granted, weighted average grant date fair value (in dollars per share)     $ 12.30
Options expected to vest, vested, grant date fair value (dollars per share)     $ 10.45
February 07, 2018      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Granted (in shares)   65,527  
Vested (in shares)   (51,775)  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Granted, weighted average grant date fair value (in dollars per share)   $ 12.47  
Options expected to vest, vested, grant date fair value (dollars per share)   $ 10.84  
February 6, 2019      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Granted (in shares) 44,949    
Vested (in shares) (84,734)    
Forfeited (in shares) (1,614)    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Granted, weighted average grant date fair value (in dollars per share) $ 15.72    
Options expected to vest, vested, grant date fair value (dollars per share) 11.76    
Forfeited/Canceled (in dollars per share) $ 12.44