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Earnings per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Earnings per Share [Abstract]        
Net income applicable to common stock $ 6,901 $ 6,647 $ 13,641 $ 15,110
Basic earnings per share computation [Abstract]        
Weighted average common shares outstanding (in shares) 3,973,402 3,983,274 3,969,621 3,984,970
Earnings per share - basic (in dollars per share) $ 1.74 $ 1.67 $ 3.43 $ 3.79
Diluted earnings per share computation [Abstract]        
Weighted average common shares outstanding for basic earnings per share (in shares) 3,973,402 3,983,274 3,969,621 3,984,970
Add: Dilutive effects of restricted stock (in shares) 15 72 104 35
Weighted average common shares outstanding for dilutive earnings per share (in shares) 3,973,417 3,983,346 3,969,725 3,985,005
Earnings per share - diluted (in dollars per share) $ 1.74 $ 1.67 $ 3.43 $ 3.79
Restricted Stock [Member]        
Antidilutive Securities [Abstract]        
Antidilutive restricted stock excluded from net income per share calculations (in shares) 3,121 2,479 6,264 2,401
Restricted Stock [Member] | Minimum [Member]        
Antidilutive Securities [Abstract]        
Antidilutive stock share price range (in dollars per share) $ 57.36 $ 51.14 $ 51.14 $ 51.14
Restricted Stock [Member] | Maximum [Member]        
Antidilutive Securities [Abstract]        
Antidilutive stock share price range (in dollars per share) $ 67.85 $ 62.33 $ 67.85 $ 62.33