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Loans and Allowance for Credit Losses on Loans (Financing Receivable, Nonaccrual) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	$ 3,785	$ 7,100
Non-Accrual Loans Without an Allowance	542	496
Total Non-Accrual Loans	4,327	7,596
Non-Accrual Loans	4,327	7,596
Total Collateral -Dependent Non-Accrual Loans
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	379	937
Non-Accrual Loans	379	937
Real Estate
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	379	248
Non-Accrual Loans	379	248
General Business Assets
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	0	689
Non-Accrual Loans	0	689
Commercial real estate, non owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	38	351
Non-Accrual Loans Without an Allowance	13	15
Total Non-Accrual Loans	51	366
Non-Accrual Loans	51	366
Commercial real estate, owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	86	99
Non-Accrual Loans Without an Allowance	47	47
Total Non-Accrual Loans	133	146
Non-Accrual Loans	133	146
Commercial
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	785	1,549
Non-Accrual Loans Without an Allowance	44	58
Total Non-Accrual Loans	829	1,607
Non-Accrual Loans	829	1,607
Commercial | Total Collateral -Dependent Non-Accrual Loans
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	0	689
Non-Accrual Loans	0	689
Commercial | Real Estate
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	0	0
Non-Accrual Loans	0	0
Commercial | General Business Assets
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	0	689
Non-Accrual Loans	0	689
Residential real estate
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	1,780	3,136
Non-Accrual Loans Without an Allowance	327	341
Total Non-Accrual Loans	2,107	3,477
Non-Accrual Loans	2,107	3,477
Residential real estate | Total Collateral -Dependent Non-Accrual Loans
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	268	248
Non-Accrual Loans	268	248
Residential real estate | Real Estate
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	268	248
Non-Accrual Loans	268	248
Residential real estate | General Business Assets
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	0	0
Non-Accrual Loans	0	0
Home equity
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	1,064	1,961
Non-Accrual Loans Without an Allowance	111	35
Total Non-Accrual Loans	1,175	1,996
Non-Accrual Loans	1,175	1,996
Home equity | Total Collateral -Dependent Non-Accrual Loans
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	111	0
Non-Accrual Loans	111	0
Home equity | Real Estate
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	111	0
Non-Accrual Loans	111	0
Home equity | General Business Assets
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	0	0
Non-Accrual Loans	0	0
Consumer
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	32	4
Non-Accrual Loans Without an Allowance	0	0
Total Non-Accrual Loans	32	4
Non-Accrual Loans	$ 32	$ 4

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