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, 2022	16,030,172
Balance (in shares) at Dec. 31, 2022		511,353
Balance, beginning of period at Dec. 31, 2022	$ 16,030	$ (12,520)	$ 143,950	$ (1,652)	$ 151,743	$ (49,878)	$ (1,652)	$ 249,325
Net income					19,887			19,887
Other comprehensive income (loss), net						(9,948)		(9,948)
Cash dividends declared on common stock					(12,934)			(12,934)
Shares issued for dividend reinvestment plan (in shares)		(60,871)
Shares issued for dividend reinvestment plan		$ 1,413	(182)					1,231
Restricted stock granted (in shares)		(53,788)
Restricted stock granted		$ 1,314	(1,314)					0
Forfeiture of restricted stock (in shares)		23,039
Forfeiture of restricted stock		$ (503)	503					0
Stock-based compensation expense			1,015					1,015
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		$ (6,500)						(6,500)
Balance (in shares) at Sep. 30, 2023	16,030,172
Balance (in shares) at Sep. 30, 2023		754,486
Balance, end of period at Sep. 30, 2023	$ 16,030	$ (17,015)	143,972		157,044	(59,826)		240,205
Balance (in shares) at Jun. 30, 2023	16,030,172
Balance (in shares) at Jun. 30, 2023		762,076
Balance, beginning of period at Jun. 30, 2023	$ 16,030	$ (17,226)	143,661		153,725	(48,073)		248,117
Net income					7,591			7,591
Other comprehensive income (loss), net						(11,753)		(11,753)
Cash dividends declared on common stock					(4,272)			(4,272)
Shares issued for dividend reinvestment plan (in shares)		(20,184)
Shares issued for dividend reinvestment plan		$ 457	(36)					421
Forfeiture of restricted stock (in shares)		1,073
Forfeiture of restricted stock		$ (27)	27					0
Stock-based compensation expense			320					320
Purchase of restricted stock for tax withholding (in shares)		838
Purchase of restricted stock for tax withholding		$ (16)						(16)
Treasury stock purchases (in shares)		10,683
Treasury stock purchases		$ (203)						(203)
Balance (in shares) at Sep. 30, 2023	16,030,172
Balance (in shares) at Sep. 30, 2023		754,486
Balance, end of period at Sep. 30, 2023	$ 16,030	$ (17,015)	143,972		157,044	(59,826)		$ 240,205
Balance (in shares) at Dec. 31, 2023	16,030,172
Balance (in shares) at Dec. 31, 2023		735,037						735,037
Balance, beginning of period at Dec. 31, 2023	$ 16,030	$ (16,628)	144,388		157,028	(38,437)		$ 262,381
Net income					17,784			17,784
Other comprehensive income (loss), net						8,373		8,373
Cash dividends declared on common stock					(12,892)			(12,892)
Shares issued for dividend reinvestment plan (in shares)		(64,476)
Shares issued for dividend reinvestment plan		$ 1,452	(237)					1,215
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			1,099					1,099
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		$ (443)						$ (443)
Balance (in shares) at Sep. 30, 2024	16,030,172
Balance (in shares) at Sep. 30, 2024		616,040						616,040
Balance, end of period at Sep. 30, 2024	$ 16,030	$ (13,787)	143,206		161,920	(30,064)		$ 277,305
Balance (in shares) at Jun. 30, 2024	16,030,172
Balance (in shares) at Jun. 30, 2024		654,190
Balance, beginning of period at Jun. 30, 2024	$ 16,030	$ (14,659)	143,352		159,859	(41,361)		263,221
Net income					6,365			6,365
Other comprehensive income (loss), net						11,297		11,297
Cash dividends declared on common stock					(4,304)			(4,304)
Shares issued for dividend reinvestment plan (in shares)		(21,688)
Shares issued for dividend reinvestment plan		$ 484	(81)					403
Restricted stock granted (in shares)		(20,000)
Restricted stock granted		$ 448	(448)					0
Stock-based compensation expense			383					383
Treasury stock purchases (in shares)		3,538
Treasury stock purchases		$ (60)						$ (60)
Balance (in shares) at Sep. 30, 2024	16,030,172
Balance (in shares) at Sep. 30, 2024		616,040						616,040
Balance, end of period at Sep. 30, 2024	$ 16,030	$ (13,787)	$ 143,206		$ 161,920	$ (30,064)		$ 277,305