Loans and Allowance for Credit Losses (Impaired Financing Receivables by Loan Class) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Impaired Nonaccrual Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	$ 2,207	$ 2,553
Recorded investment with no allowance	1,908	1,922
Year-to-date average recorded investment	2,844	3,765
Impaired Accruing Restructured Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	4,539	5,796
Recorded investment with no allowance	2,866	2,851
Recorded investment with an allowance	1,539	2,816
Related allowance	127	173
Year-to-date average recorded investment	5,095	6,132
Interest recorded investment	165	236
Other Impaired Accruing Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,841	508
Recorded investment with no allowance	1,841	508
Year-to-date average recorded investment	1,308	948
Interest recorded investment	40	38
Impaired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	8,587	8,857
Recorded investment with no allowance	6,615	5,281
Recorded investment with an allowance	1,539	2,816
Related allowance	127	173
Year-to-date average recorded investment	9,247	10,845
Interest recorded investment	205	274
Residential Portfolio Segment [Member] | Impaired Nonaccrual Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,363	882
Recorded investment with no allowance	1,259	803
Year-to-date average recorded investment	1,661	1,095
Residential Portfolio Segment [Member] | Impaired Accruing Restructured Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	2,849	2,965
Recorded investment with no allowance	1,176	475
Recorded investment with an allowance	1,539	2,361
Related allowance	127	172
Year-to-date average recorded investment	2,979	3,150
Interest recorded investment	108	146
Residential Portfolio Segment [Member] | Other Impaired Accruing Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,107	78
Recorded investment with no allowance	1,107	78
Year-to-date average recorded investment	474	465
Interest recorded investment	3	21
Residential Portfolio Segment [Member] | Impaired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	5,319	3,925
Recorded investment with no allowance	3,542	1,356
Recorded investment with an allowance	1,539	2,361
Related allowance	127	172
Year-to-date average recorded investment	5,114	4,710
Interest recorded investment	111	167
Commercial Real Estate Portfolio Segment [Member] | Impaired Nonaccrual Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	159	994
Recorded investment with no allowance	150	606
Year-to-date average recorded investment	604	2,122
Commercial Real Estate Portfolio Segment [Member] | Impaired Accruing Restructured Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	1,680	2,807
Recorded investment with no allowance	1,680	2,352
Recorded investment with an allowance		455
Related allowance		1
Year-to-date average recorded investment	2,095	2,952
Interest recorded investment	56	87
Commercial Real Estate Portfolio Segment [Member] | Other Impaired Accruing Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	710	420
Recorded investment with no allowance	710	420
Year-to-date average recorded investment	553	470
Interest recorded investment	30	17
Commercial Real Estate Portfolio Segment [Member] | Impaired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	2,549	4,221
Recorded investment with no allowance	2,540	3,378
Recorded investment with an allowance		455
Related allowance		1
Year-to-date average recorded investment	3,252	5,544
Interest recorded investment	86	104
Commercial Portfolio Segment [Member] | Impaired Nonaccrual Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	359	380
Recorded investment with no allowance	174	216
Year-to-date average recorded investment	227	242
Commercial Portfolio Segment [Member] | Other Impaired Accruing Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance		10
Recorded investment with no allowance		10
Year-to-date average recorded investment	51	13
Interest recorded investment	1
Commercial Portfolio Segment [Member] | Impaired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	359	390
Recorded investment with no allowance	174	226
Year-to-date average recorded investment	278	255
Interest recorded investment	1
Consumer Portfolio Segment [Member] | Impaired Nonaccrual Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	29
Recorded investment with no allowance	28
Year-to-date average recorded investment	43	9
Consumer Portfolio Segment [Member] | Impaired Accruing Restructured Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Year-to-date average recorded investment	5
Consumer Portfolio Segment [Member] | Other Impaired Accruing Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Year-to-date average recorded investment	15
Consumer Portfolio Segment [Member] | Impaired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	29
Recorded investment with no allowance	28
Year-to-date average recorded investment	63	9
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member] | Impaired Nonaccrual Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	297	297
Recorded investment with no allowance	297	297
Year-to-date average recorded investment	309	297
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member] | Impaired Accruing Restructured Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	10	24
Recorded investment with no allowance	10	24
Year-to-date average recorded investment	16	30
Interest recorded investment	1	3
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member] | Other Impaired Accruing Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	24
Recorded investment with no allowance	24
Year-to-date average recorded investment	215
Interest recorded investment	6
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member] | Impaired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid principal balance	331	321
Recorded investment with no allowance	331	321
Year-to-date average recorded investment	540	327
Interest recorded investment	$ 7	$ 3