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Loans and Allowance for Credit Losses on Loans - Schedule of Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 22,983	$ 23,023	$ 22,874
(Reversal) provision	2,575	(63)	(1,449)
Initial allowance for PCD loans			1,505
(Charge-offs)	(441)	(32)	(5)
Recoveries	55	55	98
Ending balance	25,172	22,983	23,023
Commercial | Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,794	1,709	2,530
(Reversal) provision	(100)	72	(1,240)
Initial allowance for PCD loans			405
(Charge-offs)	(11)	(9)	0
Recoveries	29	22	14
Ending balance	1,712	1,794	1,709
Commercial real estate | Commercial owner-occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,487	2,776	2,778
(Reversal) provision	395	(289)	(561)
Initial allowance for PCD loans			559
(Charge-offs)	(406)	0	0
Recoveries	0	0	0
Ending balance	2,476	2,487	2,776
Commercial real estate | Commercial real estate, non-owner occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	12,676	12,739	12,682
(Reversal) provision	2,257	(63)	(476)
Initial allowance for PCD loans			533
(Charge-offs)	0	0	0
Recoveries	0	0	0
Ending balance	14,933	12,676	12,739
Commercial real estate | Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,937	1,653	1,557
(Reversal) provision	(130)	251	62
Initial allowance for PCD loans			0
(Charge-offs)	0	0	0
Recoveries	25	33	34
Ending balance	1,832	1,937	1,653
Residential loans | Home equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	558	595	738
(Reversal) provision	(6)	(37)	(193)
Initial allowance for PCD loans			0
(Charge-offs)	0	0	0
Recoveries	0	0	50
Ending balance	552	558	595
Residential loans | Other residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	595	644	998
(Reversal) provision	58	(49)	(360)
Initial allowance for PCD loans			6
(Charge-offs)	0	0	0
Recoveries	0	0	0
Ending balance	653	595	644
Consumer loans | Installment and other consumer loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	868	621	291
(Reversal) provision	131	270	333
Initial allowance for PCD loans			2
(Charge-offs)	(24)	(23)	(5)
Recoveries	1	0	0
Ending balance	976	868	621
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,068	2,286	1,300
(Reversal) provision	(30)	(218)	986
Initial allowance for PCD loans			0
(Charge-offs)	0	0	0
Recoveries	0	0	0
Ending balance	$ 2,038	$ 2,068	$ 2,286

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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- Definition

Amount of increase in allowance for credit loss on financing receivable purchased with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

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