Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Treasury Shares	Paid-in Capital	Retained Earnings Adoption of ASU 2016-13 (CECL)	Retained Earnings	Accumulated Other Comprehensive Loss	Adoption of ASU 2016-13 (CECL)	Total
Balance (in shares) at Dec. 31, 2021	16,030,172
Balance (in shares) at Dec. 31, 2021		271,082
Balance, beginning of period at Dec. 31, 2021	$ 16,030	$ (6,716)	$ 144,453		$ 142,612	$ 5,026		$ 301,405
Net income					26,618			26,618
Other comprehensive income (loss), net						(54,904)		(54,904)
Cash dividends declared on common stock					(17,487)			(17,487)
Shares issued for dividend reinvestment plan (in shares)		(65,470)
Shares issued for dividend reinvestment plan		$ 1,614	8					$ 1,622
Shares issued from treasury and redeemed related to exercise of stock options (in shares)		(9,178)						(13,654)
Shares issued from treasury and redeemed related to exercise of stock options		$ 227	(67)					$ 160
Restricted stock granted (in shares)		(78,243)
Restricted stock granted		$ 1,932	(1,932)					0
Forfeiture of restricted stock (in shares)		10,782
Forfeiture of restricted stock		$ (228)	228					0
Stock-based compensation expense			1,260					1,260
Purchase of restricted stock for tax withholding (in shares)		6,964
Purchase of restricted stock for tax withholding		$ (175)						(175)
Treasury stock purchases (in shares)		375,416
Treasury stock purchases		$ (9,174)						(9,174)
Balance (in shares) at Dec. 31, 2022	16,030,172
Balance (in shares) at Dec. 31, 2022		511,353
Balance, end of period at Dec. 31, 2022	$ 16,030	$ (12,520)	143,950		151,743	(49,878)		249,325
Net income					24,148			24,148
Other comprehensive income (loss), net						11,441		11,441
Cash dividends declared on common stock					(17,211)			(17,211)
Shares issued for dividend reinvestment plan (in shares)		(81,930)
Shares issued for dividend reinvestment plan		$ 1,888	(246)					$ 1,642
Shares issued from treasury and redeemed related to exercise of stock options (in shares)		(612)						(8,288)
Shares issued from treasury and redeemed related to exercise of stock options		$ 30	(30)					$ 0
Restricted stock granted (in shares)		(53,788)
Restricted stock granted		$ 1,314	(1,314)					0
Forfeiture of restricted stock (in shares)		25,261
Forfeiture of restricted stock		$ (556)	556					0
Stock-based compensation expense			1,472					1,472
Purchase of restricted stock for tax withholding (in shares)		9,453
Purchase of restricted stock for tax withholding		$ (219)						(219)
Treasury stock purchases (in shares)		325,300
Treasury stock purchases		$ (6,565)						$ (6,565)
Balance (in shares) at Dec. 31, 2023	16,030,172
Balance (in shares) at Dec. 31, 2023		735,037						735,037
Balance, end of period at Dec. 31, 2023	$ 16,030	$ (16,628)	144,388	$ (1,652)	157,028	(38,437)	$ (1,652)	$ 262,381
Net income					25,958			25,958
Other comprehensive income (loss), net						1,676		1,676
Cash dividends declared on common stock					(17,208)			(17,208)
Shares issued for dividend reinvestment plan (in shares)		(83,838)
Shares issued for dividend reinvestment plan		$ 1,885	(273)					$ 1,612
Shares issued from treasury and redeemed related to exercise of stock options (in shares)								0
Restricted stock granted (in shares)		(92,860)
Restricted stock granted		$ 2,094	(2,094)					$ 0
Forfeiture of restricted stock (in shares)		2,076
Forfeiture of restricted stock		$ (50)	50					0
Stock-based compensation expense			1,494					1,494
Purchase of restricted stock for tax withholding (in shares)		10,229
Purchase of restricted stock for tax withholding		$ (212)						(212)
Treasury stock purchases (in shares)		26,034
Treasury stock purchases		$ (417)						$ (417)
Balance (in shares) at Dec. 31, 2024	16,030,172
Balance (in shares) at Dec. 31, 2024		596,678						596,678
Balance, end of period at Dec. 31, 2024	$ 16,030	$ (13,328)	$ 143,565		$ 165,778	$ (36,761)		$ 275,284