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Allowance for Credit Losses - Loans - Loan portfolio and allowance for credit losses (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Loans:
Individually evaluated for impairment	$ 4,509			$ 3,575
Collectively evaluated for impairment	983,152			987,191
Total loans	987,661
Total loans				990,766
Allowance for loan losses:
Specific reserve allocation	400			523
General reserve allocation	11,821			10,220
Total allowance for loan losses	12,221	$ 12,132	$ 11,947	10,743	$ 11,568	$ 11,922	$ 12,398
Other commercial and industrial
Loans:
Individually evaluated for impairment	1,884
Collectively evaluated for impairment	148,958
Total loans	150,842
Allowance for loan losses:
Specific reserve allocation	398
General reserve allocation	2,451
Total allowance for loan losses	2,849	2,873	2,908
Other commercial real estate (non-owner occupied)
Loans:
Individually evaluated for impairment	2,625
Collectively evaluated for impairment	216,933
Total loans	219,558
Allowance for loan losses:
Specific reserve allocation	2
General reserve allocation	3,085
Total allowance for loan losses	3,087	3,197	3,196	5,972
Residential mortgage
Loans:
Individually evaluated for impairment				0
Collectively evaluated for impairment	175,787			297,971
Total loans	175,787
Total loans				297,971
Allowance for loan losses:
Specific reserve allocation	0			0
General reserve allocation	1,037			1,380
Total allowance for loan losses	1,037	1,032	1,025	1,380	1,473	1,465	1,590
Allocation for general risk
Allowance for loan losses:
Specific reserve allocation				0
General reserve allocation				653
Total allowance for loan losses				653	1,119	1,177	1,232
Commercial
Loans:
Total loans				679,322
Commercial | Commercial.
Loans:
Individually evaluated for impairment				1,989
Collectively evaluated for impairment				226,589
Total loans				228,578
Allowance for loan losses:
Specific reserve allocation				520
General reserve allocation				2,133
Total allowance for loan losses				2,653	3,158	3,251	3,071
Commercial | Commercial real estate (owner occupied)
Loans:
Collectively evaluated for impairment	86,949
Total loans	86,949
Total loans				75,158
Allowance for loan losses:
Specific reserve allocation	0
General reserve allocation	1,517
Total allowance for loan losses	1,517	1,320	1,380
Commercial | Commercial real estate (non-owner occupied)
Loans:
Individually evaluated for impairment				1,586
Collectively evaluated for impairment				449,158
Total loans				450,744
Allowance for loan losses:
Specific reserve allocation				3
General reserve allocation				5,969
Total allowance for loan losses				5,972	5,716	5,930	6,392
Commercial | Commercial real estate (non-owner occupied) - retail
Loans:
Individually evaluated for impairment	0
Collectively evaluated for impairment	153,164
Total loans	153,164
Allowance for loan losses:
Specific reserve allocation	0
General reserve allocation	1,477
Total allowance for loan losses	1,477	1,486	1,432
Commercial | Commercial real estate (non-owner occupied) - multi-family
Loans:
Individually evaluated for impairment	0
Collectively evaluated for impairment	100,322
Total loans	100,322
Allowance for loan losses:
Specific reserve allocation	0
General reserve allocation	1,145
Total allowance for loan losses	1,145	1,146	1,226
Consumer.
Loans:
Total loans				311,444
Consumer. | Residential mortgage
Loans:
Total loans				297,971
Consumer. | Consumer
Loans:
Individually evaluated for impairment				0
Collectively evaluated for impairment	101,039			13,473
Total loans	101,039
Total loans				13,473
Allowance for loan losses:
Specific reserve allocation	0			0
General reserve allocation	1,109			85
Total allowance for loan losses	$ 1,109	$ 1,078	$ 780	$ 85	$ 102	$ 99	$ 113

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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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