Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings per share basic and diluted [Abstract]
Net income applicable to common stock	$ 6,740	$ 8,463
Basic earnings per share computation [Abstract]
Weighted average common shares outstanding (in shares)	3,939,125	3,948,446
Earnings per share - basic (in dollars per share)	$ 1.71	$ 2.14
Diluted earnings per share computation [Abstract]
Weighted average common shares outstanding for basic earnings per share (in shares)	3,939,125	3,948,446
Add: Dilutive effects of restricted stock (in shares)	57	0
Weighted average common shares outstanding for dilutive earnings per share (in shares)	3,939,182	3,948,446
Earnings per share - diluted (in dollars per share)	$ 1.71	$ 2.14
Restricted Stock [Member]
Antidilutive Securities [Abstract]
Antidilutive restricted stock excluded from net income per share calculations (in shares)	3,358	3,289
Restricted Stock [Member] | Minimum [Member]
Antidilutive Securities [Abstract]
Antidilutive stock share price range (in dollars per share)	$ 57.36	$ 57.36
Restricted Stock [Member] | Maximum [Member]
Antidilutive Securities [Abstract]
Antidilutive stock share price range (in dollars per share)	$ 63.19	$ 62.93