Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings per Share [Abstract]
Net income applicable to common stock	$ 7,544	$ 7,064	$ 21,185	$ 22,174
Basic earnings per share computation [Abstract]
Weighted average common shares outstanding (in shares)	3,967,585	3,988,294	3,970,646	3,984,748
Earnings per share - basic (in dollars per share)	$ 1.9	$ 1.77	$ 5.34	$ 5.56
Diluted earnings per share computation [Abstract]
Weighted average common shares outstanding for basic earnings per share (in shares)	3,967,585	3,988,294	3,970,646	3,984,748
Add: Dilutive effects of restricted stock (in shares)	234	95	2	7
Weighted average common shares outstanding for dilutive earnings per share (in shares)	3,967,819	3,988,389	3,970,648	3,984,755
Earnings per share - diluted (in dollars per share)	$ 1.9	$ 1.77	$ 5.34	$ 5.56
Restricted Stock [Member]
Antidilutive Securities [Abstract]
Antidilutive restricted stock excluded from net income per share calculations (in shares)	356	4,977	5,811	6,000
Restricted Stock [Member] | Minimum [Member]
Antidilutive Securities [Abstract]
Antidilutive stock share price range (in dollars per share)	$ 57.36	$ 57.39	$ 44.93	$ 51.14
Restricted Stock [Member] | Maximum [Member]
Antidilutive Securities [Abstract]
Antidilutive stock share price range (in dollars per share)	$ 74.27	$ 63.19	$ 74.27	$ 63.19