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Allowance for Credit Losses - Loans - Aging categories of performing loans and non-accrual loans (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Non-Accrual	$ 14,421	$ 10,810
Total Loans	1,055,683	1,067,949
Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Non-Accrual	5,539	8,773
Total Loans	236,352	233,882
Current
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	1,038,594	1,052,664
Total Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	2,668	4,475
30-59 Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	1,669	4,280
60-89 Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	707	72
90 or More Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	292	123
Commercial Portfolio Segment
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Loans	771,497	782,228
Commercial Portfolio Segment | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Non-Accrual	3,818	152
Total Loans	88,481	86,953
Commercial Portfolio Segment | Commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Non-Accrual	3,610	675
Total Loans	140,361	147,251
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - retail
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Non-Accrual	606
Total Loans	180,549	181,778
Commercial Portfolio Segment | 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 Loans	125,754	132,364
Commercial Portfolio Segment | Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Non-Accrual	5,539	8,773
Total Loans	236,352	233,882
Commercial Portfolio Segment | Current | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	84,663	86,368
Commercial Portfolio Segment | Current | Commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	136,618	144,627
Commercial Portfolio Segment | Current | Commercial real estate (non-owner occupied) - retail
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	178,442	181,778
Commercial Portfolio Segment | Current | 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 Past Due	125,754	132,364
Commercial Portfolio Segment | Current | Other commercial real estate (non-owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	230,625	224,914
Commercial Portfolio Segment | Total Past Due | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due		433
Commercial Portfolio Segment | Total Past Due | Commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	133	1,949
Commercial Portfolio Segment | Total 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 Past Due	1,501
Commercial Portfolio Segment | Total 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 Past Due	188	195
Commercial Portfolio Segment | 30-59 Days Past Due | Commercial real estate (owner occupied)
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due		433
Commercial Portfolio Segment | 30-59 Days Past Due | Commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due		1,852
Commercial Portfolio Segment | 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 Past Due	981
Commercial Portfolio Segment | 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 Past Due	188	195
Commercial Portfolio Segment | 60-89 Days Past Due | Commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	89
Commercial Portfolio Segment | 60-89 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 Past Due	520
Commercial Portfolio Segment | 90 or More Days Past Due | Commercial and industrial
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	44	97
Residential mortgages
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Non-Accrual	213	379
Total Loans	172,612	177,110
Residential mortgages | Current
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	172,036	175,817
Residential mortgages | Total Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	363	914
Residential mortgages | 30-59 Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	39	852
Residential mortgages | 60-89 Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	81	36
Residential mortgages | 90 or More Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	243	26
Consumer
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Non-Accrual	635	831
Total Loans	111,574	108,611
Consumer | Current
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	110,456	106,796
Consumer | Total Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	483	984
Consumer | 30-59 Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	461	948
Consumer | 60-89 Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	17	$ 36
Consumer | 90 or More Days Past Due
Classes of the loan portfolio summarized by the aging categories of performing loans and nonaccrual loans
Total Past Due	$ 5

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