Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss), Net of Tax [Member]	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at Dec. 31, 2022	$ 89,591	$ 229,012	$ 438,596		$ (129,152)	$ 628,047
Balance (in shares) at Dec. 31, 2022	17,918,280
Increase (Decrease) in Stockholders' Equity [Roll forward]
Net income			59,345			59,345
Other comprehensive income (loss)					(12,249)	(12,249)
Cash dividends declared			(23,965)			(23,965)
Issuance of common stock	$ 212	625				837
Issuance of common stock (in shares)	42,473
Issuance of restricted stock	$ 264	(264)				0
Issuance of restricted stock (in shares)	52,865
Vesting of restricted stock	$ (107)	107				0
Vesting of restricted stock (in shares)	(21,409)
Forfeiture of restricted stock	$ (4)
Forfeiture of restricted stock		4				0
Forfeiture of restricted stock (in shares)	(790)
Stock-based compensation		1,019				1,019
Balance at Sep. 30, 2023	$ 89,956	230,503	473,976		(141,401)	653,034
Balance (in shares) at Sep. 30, 2023	17,991,419
Balance at Jun. 30, 2023	$ 89,918	229,943	461,578		(121,314)	660,125
Balance (in shares) at Jun. 30, 2023	17,983,700
Increase (Decrease) in Stockholders' Equity [Roll forward]
Net income			20,628			20,628
Other comprehensive income (loss)					(20,087)	(20,087)
Cash dividends declared			(8,230)			(8,230)
Issuance of common stock	$ 38	241				279
Issuance of common stock (in shares)	7,751
Vesting of restricted stock	$ 0	0				0
Vesting of restricted stock (in shares)	(32)
Stock-based compensation		319				319
Balance at Sep. 30, 2023	$ 89,956	230,503	473,976		(141,401)	653,034
Balance (in shares) at Sep. 30, 2023	17,991,419
Balance at Dec. 31, 2023	$ 89,999	231,130	484,400		(103,321)	$ 702,208
Balance (in shares) at Dec. 31, 2023	17,999,840					17,999,840
Increase (Decrease) in Stockholders' Equity [Roll forward]
Net income			60,320			$ 60,320
Other comprehensive income (loss)					22,745	22,745
Cash dividends declared			(24,945)			(24,945)
Issuance of common stock	$ 313	1,182				1,495
Issuance of common stock (in shares)	62,575
Issuance of restricted stock	$ 75	(75)				0
Issuance of restricted stock (in shares)	15,000
Vesting of restricted stock	$ (114)	114				0
Vesting of restricted stock (in shares)	(22,831)
Forfeiture of restricted stock	$ (12)
Forfeiture of restricted stock		12				0
Forfeiture of restricted stock (in shares)	(2,437)
Stock-based compensation		900				900
Accounting Standards Update [Extensible Enumeration]				Accounting Standards Update 2023-02 [Member]			Accounting Standards Update 2023-02 [Member]
Balance at Sep. 30, 2024	$ 90,261	233,263	517,814	$ (1,961)	(80,576)	$ 760,762	$ (1,961)
Balance (in shares) at Sep. 30, 2024	18,052,147					18,052,147
Balance at Jun. 30, 2024	$ 90,129	232,179	504,116		(107,101)	$ 719,323
Balance (in shares) at Jun. 30, 2024	18,025,763
Increase (Decrease) in Stockholders' Equity [Roll forward]
Net income			22,142			22,142
Other comprehensive income (loss)					26,525	26,525
Cash dividends declared			(8,444)			(8,444)
Issuance of common stock	$ 132	791				923
Issuance of common stock (in shares)	26,384
Vesting of restricted stock	$ 0	0				0
Vesting of restricted stock (in shares)	0
Forfeiture of restricted stock	$ 0
Forfeiture of restricted stock		0				0
Forfeiture of restricted stock (in shares)	0
Stock-based compensation		293				293
Balance at Sep. 30, 2024	$ 90,261	$ 233,263	$ 517,814	$ (1,961)	$ (80,576)	$ 760,762	$ (1,961)
Balance (in shares) at Sep. 30, 2024	18,052,147					18,052,147