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Allowance for Credit Losses - Loans - Aging categories of performing loans and non-accrual loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	$ 1,025,687	$ 1,038,271
Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	148,805	159,424
Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	229,574	240,286
Residential mortgage
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	176,991	174,670
Financial Asset, Not Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	1,014,758	1,033,773
Financial Asset, Not Past Due | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	147,873
Financial Asset, Not Past Due | Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	222,577	239,243
Financial Asset, Not Past Due | Residential mortgage
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	176,167	173,647
Financial Asset, Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	10,929	4,498
Financial Asset, Past Due | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	932
Financial Asset, Past Due | Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	6,997	1,043
Financial Asset, Past Due | Residential mortgage
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	824	1,023
30-59 Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	8,280	1,704
30-59 Days Past Due | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	364
30-59 Days Past Due | Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	6,224
30-59 Days Past Due | Residential mortgage
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	134	437
Financing Receivables 60To 89Days Past Due Member
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	348	63
Financing Receivables 60To 89Days Past Due Member | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	93
Financing Receivables 60To 89Days Past Due Member | Residential mortgage
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	15	18
Financing Receivables Equal To Greater Than 90Days Past Due Member
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	2,301	2,731
Financing Receivables Equal To Greater Than 90Days Past Due Member | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	475
Financing Receivables Equal To Greater Than 90Days Past Due Member | Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	773	1,043
Financing Receivables Equal To Greater Than 90Days Past Due Member | Residential mortgage
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	675	568
Commercial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	745,752	760,826
Commercial | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	88,030	89,147
Commercial | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	148,805	159,424
Commercial | Commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total		161,961
Commercial | Commercial real estate (non-owner occupied) - retail
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	169,787	161,961
Commercial | Commercial real estate (non-owner occupied) - multi-family
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	109,556	110,008
Commercial | Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	229,574	240,286
Commercial | Financial Asset, Not Past Due | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	87,845	88,960
Commercial | Financial Asset, Not Past Due | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total		158,290
Commercial | Financial Asset, Not Past Due | Commercial real estate (non-owner occupied) - retail
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	168,559	161,961
Commercial | Financial Asset, Not Past Due | Commercial real estate (non-owner occupied) - multi-family
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	109,556	110,008
Commercial | Financial Asset, Past Due | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	185	187
Commercial | Financial Asset, Past Due | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total		1,134
Commercial | Financial Asset, Past Due | Commercial real estate (non-owner occupied) - retail
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	1,228
Commercial | 30-59 Days Past Due | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total		526
Commercial | 30-59 Days Past Due | Commercial real estate (non-owner occupied) - retail
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	1,228
Commercial | Financing Receivables 60To 89Days Past Due Member | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total		22
Commercial | Financing Receivables Equal To Greater Than 90Days Past Due Member | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	185	187
Commercial | Financing Receivables Equal To Greater Than 90Days Past Due Member | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total		586
Commercial | Pass
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	717,584	728,312
Commercial | Pass | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	87,773	85,244
Commercial | Pass | Other commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	146,610	157,036
Commercial | Pass | Commercial real estate (non-owner occupied) - retail
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	168,351	160,480
Commercial | Pass | Commercial real estate (non-owner occupied) - multi-family
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	107,210	107,641
Commercial | Pass | Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	207,640	217,911
Consumer.
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	279,935	277,445
Consumer. | Commercial real estate (non-owner occupied) - multi-family
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total		110,008
Consumer. | Residential mortgage
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	176,991	174,670
Consumer. | Consumer
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	102,944	102,775
Consumer. | Financial Asset, Not Past Due | Consumer
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	102,181	101,664
Consumer. | Financial Asset, Past Due | Consumer
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	763	1,111
Consumer. | 30-59 Days Past Due | Consumer
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	330	741
Consumer. | Financing Receivables 60To 89Days Past Due Member | Consumer
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	240	23
Consumer. | Financing Receivables Equal To Greater Than 90Days Past Due Member | Consumer
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total	$ 193	$ 347

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

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