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Stock and Incentive Compensation Plans - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Number of Shares        
Outstanding at beginning of period (in shares) 224,000 254,000 274,000  
Exercised (in shares) (184,800) (30,000) (20,000)  
Outstanding at end of period (in shares) 39,200 224,000 254,000 274,000
Exercisable at end of period (in shares) 39,200      
Weighted Average Exercise Price        
Outstanding at beginning of period (in dollars per share) $ 10.86 $ 10.55 $ 10.38  
Exercised (in dollars per share) 10.88 8.25 8.25  
Outstanding at end of period (in dollars per share) 10.73 $ 10.86 $ 10.55 $ 10.38
Exercisable at end of period (in dollars per share) $ 10.73      
Weighted average remaining contractual term (in years) 2 years 3 months 10 days 4 years 11 months 1 day 5 years 9 months 21 days 6 years 9 months
Weighted average remaining contractual term, exercisable (in years) 2 years 3 months 10 days      
Aggregate Intrinsic Value $ 1,262 $ 3,789 $ 6,932 $ 6,493
Aggregate intrinsic value, exercised 0 $ 0 $ 0  
Aggregate intrinsic value, exercisable $ 1,262