Loans and Allowance for Credit Losses - Schedule of Allowance for Credit Losses and Recorded Investment in Financing Receivables (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
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	$ 17,162	$ 19,148	$ 19,969	$ 17,861	$ 17,861
Charge-offs	(51)	(190)	(163)	(389)	(506)
Recoveries	22	56	94	100
Provisions (credits)	81	250	(2,686)	74
Allowance for Credit Losses, Ending balance	17,214	19,264	17,214	19,264	19,969
Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				1,618	1,618
Commercial Real Estate
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	10,196	11,728	12,010	10,016	10,016
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	196	170	(1,618)	776
Allowance for Credit Losses, Ending balance	10,392	11,898	10,392	11,898	12,010
Commercial Real Estate \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				1,106	1,106
Residential Mortgage
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	2,839	3,075	3,303	3,029	3,029
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	31	78	(433)	(173)
Allowance for Credit Losses, Ending balance	2,870	3,153	2,870	3,153	3,303
Residential Mortgage \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				297	297
Commercial and Industrial
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	1,465	1,941	2,048	2,848	2,848
Charge-offs	0	(81)	0	(110)
Recoveries	6	32	24	42
Provisions (credits)	301	(381)	(300)	(507)
Allowance for Credit Losses, Ending balance	1,772	1,511	1,772	1,511	2,048
Commercial and Industrial \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				(762)	(762)
Home Equity Lines of Credit
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	312	388	397	347	347
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	(16)	5	(101)	29
Allowance for Credit Losses, Ending balance	296	393	296	393	397
Home Equity Lines of Credit \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				17	17
Real Estate Construction
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	2,247	1,885	2,070	1,000	1,000
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	(467)	279	(290)	(183)
Allowance for Credit Losses, Ending balance	1,780	2,164	1,780	2,164	2,070
Real Estate Construction \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				1,347	1,347
Consumer
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	103	131	141	376	376
Charge-offs	(51)	(109)	(163)	(279)
Recoveries	16	24	70	58
Provisions (credits)	36	99	56	132
Allowance for Credit Losses, Ending balance	104	145	104	145	141
Consumer \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				(142)	(142)
Unallocated
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	0	0	0	245	245
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	0	0	0	0
Allowance for Credit Losses, Ending balance	$ 0	$ 0	$ 0	0	0
Unallocated \| Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				$ (245)	$ (245)

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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