Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Impact of ASC 326 Adoption	Common stock and additional paid-in capital	Retained earnings	Retained earnings Impact of ASC 326 Adoption	Accumulated other comprehensive income (loss)
Balance (in shares) at Dec. 31, 2020			10,950,289
Balance at beginning of year at Dec. 31, 2020	$ 223,726		$ 65,395	$ 158,359		$ (28)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	36,269			36,269
Net unrealized gain (loss) on securities available for sale, net of tax	(6,727)					(6,727)
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	4,932					4,932
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	46					46
Unrecognized gain for post-retirement benefits, net of tax	77					77
Comprehensive income (loss)	34,597			36,269		(1,672)
Cash dividends declared	(13,958)			(13,958)
Equity compensation expense	856		$ 856
Payment for repurchase of common stock (in shares)			(9,752)
Payment for repurchase of common stock	(253)			(253)
Issuance of restricted stock, net of forfeitures (in shares)			34,189
Proceeds from sale of common stock (in shares)			24,039
Proceeds from sale of common stock	689		$ 689
Balance (in shares) at Dec. 31, 2021			10,998,765
Balance at end of year at Dec. 31, 2021	245,657		$ 66,940	180,417		(1,700)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,705
Net unrealized gain (loss) on securities available for sale, net of tax	(18,343)
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	0
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	9
Comprehensive income (loss)	(8,629)
Balance at end of year at Mar. 31, 2022	233,646
Balance (in shares) at Dec. 31, 2021			10,998,765
Balance at beginning of year at Dec. 31, 2021	245,657		$ 66,940	180,417		(1,700)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	38,990			38,990
Net unrealized gain (loss) on securities available for sale, net of tax	(43,000)					(43,000)
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	544					544
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	23					23
Unrecognized gain for post-retirement benefits, net of tax	168					168
Comprehensive income (loss)	(3,275)			38,990		(42,265)
Cash dividends declared	(14,787)			(14,787)
Equity compensation expense	809		$ 809
Payment for repurchase of common stock (in shares)			(8,640)
Payment for repurchase of common stock	(277)			(277)
Issuance of restricted stock, net of forfeitures (in shares)			28,745
Proceeds from sale of common stock (in shares)			26,316
Proceeds from sale of common stock	$ 796		$ 796
Balance (in shares) at Dec. 31, 2022	11,045,186		11,045,186
Balance at end of year at Dec. 31, 2022	$ 228,923	$ (6,277)	$ 68,545	204,343	$ (6,277)	(43,965)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	Accounting Standards Update 2016-13 [Member]
Balance at beginning of year at Mar. 31, 2022	$ 233,646
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,997
Net unrealized gain (loss) on securities available for sale, net of tax	(12,734)
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	146
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	5
Comprehensive income (loss)	(2,586)
Balance at end of year at Jun. 30, 2022	227,685
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	10,091
Net unrealized gain (loss) on securities available for sale, net of tax	(14,866)
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	354
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	6
Comprehensive income (loss)	(4,415)
Balance at end of year at Sep. 30, 2022	219,917
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,197
Net unrealized gain (loss) on securities available for sale, net of tax	2,943
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	44
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	3
Comprehensive income (loss)	$ 12,355
Balance (in shares) at Dec. 31, 2022	11,045,186		11,045,186
Balance at end of year at Dec. 31, 2022	$ 228,923	(6,277)	$ 68,545	204,343	(6,277)	(43,965)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,971
Net unrealized gain (loss) on securities available for sale, net of tax	4,181
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	(2,736)
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	4
Comprehensive income (loss)	9,420
Balance at end of year at Mar. 31, 2023	$ 228,461
Balance (in shares) at Dec. 31, 2022	11,045,186		11,045,186
Balance at beginning of year at Dec. 31, 2022	$ 228,923	$ (6,277)	$ 68,545	204,343	$ (6,277)	(43,965)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,518			29,518
Net unrealized gain (loss) on securities available for sale, net of tax	5,143					5,143
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	(244)					(244)
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	8					8
Unrecognized gain for post-retirement benefits, net of tax	30					30
Comprehensive income (loss)	34,455			29,518		4,937
Cash dividends declared	(15,409)			(15,409)
Equity compensation expense	820		$ 820
Payment for repurchase of common stock (in shares)			(8,645)
Payment for repurchase of common stock	(250)			(250)
Issuance of restricted stock, net of forfeitures (in shares)			29,626
Proceeds from sale of common stock (in shares)			31,890
Proceeds from sale of common stock	$ 817		$ 817
Balance (in shares) at Dec. 31, 2023	11,098,057		11,098,057
Balance at end of year at Dec. 31, 2023	$ 243,079		$ 70,182	211,925		(39,028)
Balance at beginning of year at Mar. 31, 2023	228,461
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,394
Net unrealized gain (loss) on securities available for sale, net of tax	(3,244)
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	2,872
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	1
Comprehensive income (loss)	7,023
Balance at end of year at Jun. 30, 2023	232,003
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,474
Net unrealized gain (loss) on securities available for sale, net of tax	(10,071)
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	730
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	1
Comprehensive income (loss)	(1,866)
Balance at end of year at Sep. 30, 2023	226,665
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,679
Net unrealized gain (loss) on securities available for sale, net of tax	14,277
Net unrealized gain (loss) on cash flow hedging derivative instruments, net of tax	(1,110)
Net unrealized gain on securities transferred from available for sale to held to maturity, net of tax	2
Comprehensive income (loss)	$ 19,878
Balance (in shares) at Dec. 31, 2023	11,098,057		11,098,057
Balance at end of year at Dec. 31, 2023	$ 243,079		$ 70,182	$ 211,925		$ (39,028)