Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation Plans - Vesting Stock Award Activity (Details)

v3.22.0.1
Stock-Based Compensation Plans - Vesting Stock Award Activity (Details) - Restricted Stock - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Number of Shares      
Unvested, beginning balance (in shares) 56,284    
Granted (in shares) 54,449    
Vested (in shares) (49,382)    
Forfeited (in shares) 0    
Unvested, ending balance (in shares) 61,351 56,284  
Weighted Average Grant Date Fair Value      
Unvested, beginning balance (in dollars per share) $ 32.23    
Granted (in dollars per share) 41.90 $ 33.68 $ 32.16
Vested (in dollars per share) 34.55    
Forfeited (in dollars per share) 0    
Unvested, ending balance (in dollars per share) $ 38.80 $ 32.23