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Loans - Loans individually evaluated (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Unpaid Principal Balance
With no related allowance recorded	$ 19,863		$ 19,863		$ 15,497
With an allowance recorded	10,000		10,000		10,742
Recorded Investment
With no related allowance recorded	19,321		19,321		15,159
With an allowance recorded	9,978		9,978		10,707
Allowance for Loan Losses Allocated	3,111		3,111		1,433
Average Recorded Investment
With no related allowance recorded	19,414	$ 14,820	19,110	$ 14,848
With an allowance recorded	20,966	12,890	11,666	13,479
Interest Income Recognized
With no related allowance recorded			494	467
With an allowance recorded			251	530
Cash Basis Interest Recognized
With no related allowance recorded	164	155
With an allowance recorded	83	169
Commercial and industrial.
Unpaid Principal Balance
With an allowance recorded					951
Recorded Investment
With an allowance recorded					951
Allowance for Loan Losses Allocated					137
Commercial and industrial. \| Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded					1
With an allowance recorded	4,172		4,172
Recorded Investment
With no related allowance recorded					1
With an allowance recorded	4,170		4,170
Allowance for Loan Losses Allocated	2,721		2,721
Average Recorded Investment
With no related allowance recorded		15		32
With an allowance recorded	18,599	2,363	9,264	2,892
Interest Income Recognized
With no related allowance recorded				1
With an allowance recorded			157	118
Cash Basis Interest Recognized
With an allowance recorded	52	33
Commercial real estate.
Unpaid Principal Balance
With an allowance recorded					9,593
Recorded Investment
With an allowance recorded					9,570
Allowance for Loan Losses Allocated					1,272
Commercial real estate. \| Commercial real estate
Unpaid Principal Balance
With no related allowance recorded	17,991		17,991		14,291
With an allowance recorded	5,721		5,721
Recorded Investment
With no related allowance recorded	17,464		17,464		13,953
With an allowance recorded	5,701		5,701
Allowance for Loan Losses Allocated	390		390
Average Recorded Investment
With no related allowance recorded	17,553	13,614	17,549	13,620
With an allowance recorded	2,259	10,335	2,292	10,390
Interest Income Recognized
With no related allowance recorded			476	442
With an allowance recorded			90	405
Cash Basis Interest Recognized
With no related allowance recorded	158	147
With an allowance recorded	30	134
Commercial real estate. \| Commercial real estate construction
Average Recorded Investment
With no related allowance recorded	578	578	578	578
Residential real estate.
Unpaid Principal Balance
With an allowance recorded					84
Recorded Investment
With an allowance recorded					72
Residential real estate. \| Residential real estate
Unpaid Principal Balance
With no related allowance recorded	1,816		1,816		1,155
Recorded Investment
With no related allowance recorded	1,804		1,804		1,155
Average Recorded Investment
With no related allowance recorded	1,283	588	983	593
With an allowance recorded		74		77
Interest Income Recognized
With no related allowance recorded			18	23
With an allowance recorded				2
Cash Basis Interest Recognized
With no related allowance recorded	6	8
With an allowance recorded		1
Residential real estate. \| Home equity
Unpaid Principal Balance
With no related allowance recorded	56		56		50
Recorded Investment
With no related allowance recorded	53		53		50
Average Recorded Investment
With no related allowance recorded		25		25
Interest Income Recognized
With no related allowance recorded				1
Consumer
Unpaid Principal Balance
With an allowance recorded	107		107		114
Recorded Investment
With an allowance recorded	107		107		114
Allowance for Loan Losses Allocated					$ 24
Average Recorded Investment
With an allowance recorded	108	118	110	120
Interest Income Recognized
With an allowance recorded			$ 4	$ 5
Cash Basis Interest Recognized
With an allowance recorded	$ 1	$ 1