Consolidated Statements of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss), net of Tax
Beginning balance (in shares) at Dec. 31, 2021		6,015,000
Beginning balance, value at Dec. 31, 2021	$ 237,817	$ 6,015	$ 31,162	$ 204,046	$ (3,406)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(2,471)			(2,471)
Stock-based compensation expense	187		187
Repurchase of common stock (in shares)		(133,000)
Repurchase of common stock	(5,923)	$ (133)	(5,790)
Other comprehensive gain (loss), net of tax	(11,004)				(11,004)
Net income	7,226			7,226
Ending balance (in shares) at Mar. 31, 2022		5,882,000
Ending balance, value at Mar. 31, 2022	225,832	$ 5,882	25,559	208,801	(14,410)
Beginning balance (in shares) at Dec. 31, 2021		6,015,000
Beginning balance, value at Dec. 31, 2021	237,817	$ 6,015	31,162	204,046	(3,406)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive gain (loss), net of tax	(27,982)
Net income	22,146
Ending balance (in shares) at Sep. 30, 2022		5,681,000
Ending balance, value at Sep. 30, 2022	210,699	$ 5,681	17,907	218,499	(31,388)
Beginning balance (in shares) at Mar. 31, 2022		5,882,000
Beginning balance, value at Mar. 31, 2022	225,832	$ 5,882	25,559	208,801	(14,410)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(2,364)			(2,364)
Stock-based compensation expense	190		190
Other comprehensive gain (loss), net of tax	(4,930)				(4,930)
Net income	4,795			4,795
Ending balance (in shares) at Jun. 30, 2022		5,681,000
Ending balance, value at Jun. 30, 2022	215,289	$ 5,681	17,716	211,232	(19,340)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(2,858)			(2,858)
Stock-based compensation expense	191		191
Other comprehensive gain (loss), net of tax	(12,048)				(12,048)
Net income	10,125			10,125
Ending balance (in shares) at Sep. 30, 2022		5,681,000
Ending balance, value at Sep. 30, 2022	210,699	$ 5,681	17,907	218,499	(31,388)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(2,869)			(2,869)
Stock-based compensation expense	174		174
Exercise of stock options and vesting of restricted stock units, net (in shares)		20,000
Exercise of stock options and vesting of restricted stock units, net	(277)	$ 20	(297)
Other comprehensive gain (loss), net of tax	2,307				2,307
Net income	$ 8,595			8,595
Ending balance (in shares) at Dec. 31, 2022	5,700,728	5,701,000
Ending balance, value at Dec. 31, 2022	$ 218,629	$ 5,701	17,784	224,225	(29,081)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(3,444)			(3,444)
Stock-based compensation expense	140		140
Repurchase of common stock (in shares)		(28,000)
Repurchase of common stock	(1,327)	$ (28)	(1,299)
Other comprehensive gain (loss), net of tax	5,597				5,597
Net income	4,830			4,830
Ending balance (in shares) at Mar. 31, 2023		5,673,000
Ending balance, value at Mar. 31, 2023	$ 224,425	$ 5,673	16,625	225,611	(23,484)
Beginning balance (in shares) at Dec. 31, 2022	5,700,728	5,701,000
Beginning balance, value at Dec. 31, 2022	$ 218,629	$ 5,701	17,784	224,225	(29,081)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive gain (loss), net of tax	4,040
Net income	$ 18,781
Ending balance (in shares) at Sep. 30, 2023	5,548,436	5,548,000
Ending balance, value at Sep. 30, 2023	$ 225,259	$ 5,548	12,005	232,746	(25,040)
Beginning balance (in shares) at Mar. 31, 2023		5,673,000
Beginning balance, value at Mar. 31, 2023	224,425	$ 5,673	16,625	225,611	(23,484)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(3,432)			(3,432)
Stock-based compensation expense	225		225
Repurchase of common stock (in shares)		(62,000)
Repurchase of common stock	(2,501)	$ (62)	(2,439)
Other comprehensive gain (loss), net of tax	(2,958)				(2,958)
Net income	5,577			5,577
Ending balance (in shares) at Jun. 30, 2023		5,611,000
Ending balance, value at Jun. 30, 2023	221,336	$ 5,611	14,411	227,756	(26,442)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend on common stock	(3,384)			(3,384)
Stock-based compensation expense	254		254
Exercise of stock options and vesting of restricted stock units, net	(12)		(12)
Repurchase of common stock (in shares)		(63,000)
Repurchase of common stock	(2,711)	$ (63)	(2,648)
Other comprehensive gain (loss), net of tax	1,402				1,402
Net income	$ 8,374			8,374
Ending balance (in shares) at Sep. 30, 2023	5,548,436	5,548,000
Ending balance, value at Sep. 30, 2023	$ 225,259	$ 5,548	$ 12,005	$ 232,746	$ (25,040)