Loans and Allowance for Credit Losses (Impaired Financing Receivables by Loan Class) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Impaired Nonaccrual Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	$ 2,207
Recorded investment with no allowance	1,908
Year-to-date average recorded investment	3,108
Impaired Accruing Restructured Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	4,539
Recorded investment with no allowance	2,866
Recorded investment with an allowance	1,539
Related allowance	127
Year-to-date average recorded investment	5,412
Interest recorded investment	48
Other Impaired Accruing Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,841
Recorded investment with no allowance	1,841
Year-to-date average recorded investment	493
Interest recorded investment	4
Impaired Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	8,587
Recorded investment with no allowance	6,615
Recorded investment with an allowance	1,539
Related allowance	127
Year-to-date average recorded investment	9,013
Interest recorded investment	52
Residential real estate | Impaired Nonaccrual Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,363
Recorded investment with no allowance	1,259
Year-to-date average recorded investment	1,476
Residential real estate | Impaired Accruing Restructured Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	2,849
Recorded investment with no allowance	1,176
Recorded investment with an allowance	1,539
Related allowance	127
Year-to-date average recorded investment	2,809
Interest recorded investment	25
Residential real estate | Other Impaired Accruing Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,107
Recorded investment with no allowance	1,107
Year-to-date average recorded investment	29
Interest recorded investment	3
Residential real estate | Impaired Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	5,319
Recorded investment with no allowance	3,542
Recorded investment with an allowance	1,539
Related allowance	127
Year-to-date average recorded investment	4,314
Interest recorded investment	28
Commercial real estate | Impaired Nonaccrual Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	159
Recorded investment with no allowance	150
Year-to-date average recorded investment	906
Commercial real estate | Impaired Accruing Restructured Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,680
Recorded investment with no allowance	1,680
Year-to-date average recorded investment	2,581
Interest recorded investment	23
Commercial real estate | Other Impaired Accruing Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	710
Recorded investment with no allowance	710
Year-to-date average recorded investment	417
Interest recorded investment	1
Commercial real estate | Impaired Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	2,549
Recorded investment with no allowance	2,540
Year-to-date average recorded investment	3,904
Interest recorded investment	24
Commercial | Impaired Nonaccrual Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	359
Recorded investment with no allowance	174
Year-to-date average recorded investment	321
Commercial | Other Impaired Accruing Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Year-to-date average recorded investment	9
Commercial | Impaired Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	359
Recorded investment with no allowance	174
Year-to-date average recorded investment	330
Consumer | Impaired Nonaccrual Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	29
Recorded investment with no allowance	28
Year-to-date average recorded investment	74
Consumer | Other Impaired Accruing Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Year-to-date average recorded investment	38
Consumer | Impaired Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	29
Recorded investment with no allowance	28
Year-to-date average recorded investment	112
Construction | Commercial and Residential Real Estate | Impaired Nonaccrual Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	297
Recorded investment with no allowance	297
Year-to-date average recorded investment	331
Construction | Commercial and Residential Real Estate | Impaired Accruing Restructured Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	10
Recorded investment with no allowance	10
Year-to-date average recorded investment	22
Construction | Commercial and Residential Real Estate | Other Impaired Accruing Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	24
Recorded investment with no allowance	24
Construction | Commercial and Residential Real Estate | Impaired Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	331
Recorded investment with no allowance	331
Year-to-date average recorded investment	$ 353