Loans and Allowance for Credit Losses on Loans - Schedule of Allowance for Loan Losses by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable Impaired [Line Items]
Balance Beginning	$ 15,014	$ 14,511	$ 14,493	$ 11,218	$ 11,218
Cumulative effect adjustment for adoption of ASC 326	0	0	0	2,077	2,077
Credit losses charged to the allowance	(1,382)	(187)	(2,259)	(314)	(741)
Recoveries	145	31	754	255	298
Provision for credit losses	1,526	218	2,315	1,337	1,641
Ending Balance	15,303	$ 14,573	15,303	14,573	14,493
Ending balance: Individually evaluated for impairment	268		268		0
Ending balance: collectively evaluated for impairment	15,035		15,035		14,493
Ending balance	1,476,347		1,476,347		1,455,159
Ending balance individually evaluated for impairment	2,267		2,267		5,574
Ending balance collectively evaluated for impairment	1,474,080		1,474,080		1,449,585
Construction And Farmland
Financing Receivable Impaired [Line Items]
Balance Beginning			772	2,714	2,714
Cumulative effect adjustment for adoption of ASC 326					(1,840)
Credit losses charged to the allowance			(94)		0
Recoveries			100		8
Provision for credit losses			300		(110)
Ending Balance	1,078		1,078		772
Ending balance: Individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	1,078		1,078		772
Ending balance	97,170		97,170		84,145
Ending balance individually evaluated for impairment					95
Ending balance collectively evaluated for impairment	97,170		97,170		84,050
Residential Real Estate
Financing Receivable Impaired [Line Items]
Balance Beginning			4,725	1,735	1,735
Cumulative effect adjustment for adoption of ASC 326					1,933
Credit losses charged to the allowance			(127)		0
Recoveries			304		18
Provision for credit losses			(112)		1,039
Ending Balance	4,790		4,790		4,725
Ending balance: Individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	4,790		4,790		4,725
Ending balance	367,301		367,301		356,116
Ending balance individually evaluated for impairment	545		545		1,288
Ending balance collectively evaluated for impairment	366,756		366,756		354,828
Commercial Real Estate & MultiFamily
Financing Receivable Impaired [Line Items]
Balance Beginning			6,224	2,221	2,221
Cumulative effect adjustment for adoption of ASC 326					3,584
Credit losses charged to the allowance			(7)		0
Recoveries			162		0
Provision for credit losses			(502)		419
Ending Balance	5,877		5,877		6,224
Ending balance: Individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	5,877		5,877		6,224
Ending balance	630,600		630,600		600,335
Ending balance individually evaluated for impairment	749		749		3,639
Ending balance collectively evaluated for impairment	629,851		629,851		596,696
Commercial
Financing Receivable Impaired [Line Items]
Balance Beginning			1,027	2,222	2,222
Cumulative effect adjustment for adoption of ASC 326					(1,102)
Credit losses charged to the allowance			(83)		(312)
Recoveries			44		43
Provision for credit losses			377		176
Ending Balance	1,365		1,365		1,027
Ending balance: Individually evaluated for impairment	268		268		0
Ending balance: collectively evaluated for impairment	1,097		1,097		1,027
Ending balance	111,164		111,164		107,828
Ending balance individually evaluated for impairment	891		891		0
Ending balance collectively evaluated for impairment	110,273		110,273		107,828
Marine
Financing Receivable Impaired [Line Items]
Balance Beginning			1,153	1,555	1,555
Cumulative effect adjustment for adoption of ASC 326					(285)
Credit losses charged to the allowance			(1,457)		(126)
Recoveries					0
Provision for credit losses			1,995		9
Ending Balance	1,691		1,691		1,153
Ending balance: Individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	1,691		1,691		1,153
Ending balance	225,902		225,902		251,168
Ending balance individually evaluated for impairment	0		0		552
Ending balance collectively evaluated for impairment	225,902		225,902		250,616
Consumer
Financing Receivable Impaired [Line Items]
Balance Beginning			198	299	299
Cumulative effect adjustment for adoption of ASC 326					(123)
Credit losses charged to the allowance			(376)		(121)
Recoveries			132		48
Provision for credit losses			245		95
Ending Balance	199		199		198
Ending balance: Individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	199		199		198
Ending balance	32,063		32,063		42,419
Ending balance individually evaluated for impairment	82		82		0
Ending balance collectively evaluated for impairment	31,981		31,981		42,419
All Other Loans
Financing Receivable Impaired [Line Items]
Balance Beginning			394	$ 472	472
Cumulative effect adjustment for adoption of ASC 326					(90)
Credit losses charged to the allowance			(115)		(182)
Recoveries			12		181
Provision for credit losses			12		13
Ending Balance	303		303		394
Ending balance: Individually evaluated for impairment					0
Ending balance: collectively evaluated for impairment	303		303		394
Ending balance	12,147		12,147		13,148
Ending balance individually evaluated for impairment					0
Ending balance collectively evaluated for impairment	12,147		12,147		$ 13,148
Unallocated
Financing Receivable Impaired [Line Items]
Provision for credit losses			0
Ending Balance	0		0
Ending balance: collectively evaluated for impairment	$ 0		$ 0