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Allowance for Credit Losses - Loans - Loan portfolio and allowance for credit losses (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Loans:
Individually evaluated for impairment	$ 14,528	$ 10,834
Collectively evaluated for impairment	1,011,159	1,027,437
Total loans	1,025,687	1,038,271
Allowance for loan losses:
Specific reserve allocation	2,002	414
General reserve allocation	12,637	14,639
Total allowance for credit losses	14,639	15,053	$ 12,132	$ 10,743
Other commercial and industrial
Loans:
Individually evaluated for impairment	1,678	1,694
Collectively evaluated for impairment	147,127	157,730
Total loans	148,805	159,424
Allowance for loan losses:
Specific reserve allocation	394	414
General reserve allocation	2,273	2,616
Total allowance for credit losses	2,667	3,030	2,873
Commercial real estate (non-owner occupied)
Allowance for loan losses:
Total allowance for credit losses			3,197	5,972
Other commercial real estate (non-owner occupied)
Loans:
Individually evaluated for impairment	12,141	8,780
Collectively evaluated for impairment	217,433	231,506
Total loans	229,574	240,286
Allowance for loan losses:
Specific reserve allocation	1,608	0
General reserve allocation	3,008	3,428
Total allowance for credit losses	4,616	3,428
Residential mortgage
Loans:
Individually evaluated for impairment	524	173
Collectively evaluated for impairment	176,467	174,497
Total loans	176,991	174,670
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	847	1,021
Total allowance for credit losses	847	1,021	1,032	1,380
Allocation for general risk
Allowance for loan losses:
Total allowance for credit losses				653
Commercial
Loans:
Total loans	745,752	760,826
Commercial | Commercial real estate (owner occupied)
Loans:
Individually evaluated for impairment	185	187
Collectively evaluated for impairment	87,845	88,960
Total loans	88,030	89,147
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	416	1,529
Total allowance for credit losses	416	1,529	1,320
Commercial | Other commercial and industrial
Loans:
Total loans	148,805	159,424
Commercial | Commercial real estate (non-owner occupied)
Loans:
Individually evaluated for impairment		0
Collectively evaluated for impairment		161,961
Total loans		161,961
Allowance for loan losses:
Specific reserve allocation		0
General reserve allocation		3,488
Total allowance for credit losses		3,488
Commercial | Commercial real estate (non-owner occupied) - retail
Loans:
Individually evaluated for impairment	0
Collectively evaluated for impairment	169,787
Total loans	169,787	161,961
Allowance for loan losses:
Specific reserve allocation	0
General reserve allocation	3,606
Total allowance for credit losses	3,606	3,488	1,486
Commercial | Commercial real estate (non-owner occupied) - multi-family
Loans:
Individually evaluated for impairment	0
Collectively evaluated for impairment	109,556
Total loans	109,556	110,008
Allowance for loan losses:
Specific reserve allocation	0
General reserve allocation	1,358
Total allowance for credit losses	1,358	1,430	1,146
Commercial | Other commercial real estate (non-owner occupied)
Loans:
Total loans	229,574	240,286
Consumer
Loans:
Total loans	279,935	277,445
Consumer | Commercial real estate (non-owner occupied) - multi-family
Loans:
Individually evaluated for impairment		0
Collectively evaluated for impairment		110,008
Total loans		110,008
Allowance for loan losses:
Specific reserve allocation		0
General reserve allocation		1,430
Total allowance for credit losses		1,430
Consumer | Residential mortgage
Loans:
Total loans	176,991	174,670
Consumer | Consumer
Loans:
Collectively evaluated for impairment	102,944	102,775
Total loans	102,944	102,775
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	1,129	1,127
Total allowance for credit losses	$ 1,129	$ 1,127	$ 1,078	$ 85

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

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