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Allowance for Loan Losses (Nonaccrual and Past Due Loans By Class) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Past Due [Line Items]
Past Due	$ 3,789	$ 2,187
Current	641,418	605,128
Total Loans	645,207	607,315	$ 569,238
90 or More Days Past Due Still Accruing	0	695
Nonaccrual Loans	2,185	2,118
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,772	1,091
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	547	196
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,470	900
Commercial - Non Real Estate Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Past Due	79	127
Current	46,464	32,959
Total Loans	46,543	33,086
90 or More Days Past Due Still Accruing	0	0
Nonaccrual Loans	32	1,081
Commercial - Non Real Estate Commercial And Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	47	127
Commercial - Non Real Estate Commercial And Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Commercial - Non Real Estate Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	32	0
Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,078	0
Current	147,879	136,309
Total Loans	148,957	136,309
90 or More Days Past Due Still Accruing	0	0
Nonaccrual Loans	320	0
Commercial Real Estate Owner Occupied [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,078	0
Commercial Real Estate Owner Occupied [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Commercial Real Estate Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Commercial Real Estate Non-Owner Occupied [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Current	137,643	129,286
Total Loans	137,643	129,286
90 or More Days Past Due Still Accruing	0	0
Nonaccrual Loans	329	364
Commercial Real Estate Non-Owner Occupied [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Commercial Real Estate Non-Owner Occupied [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Commercial Real Estate Non-Owner Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Residential [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Current	7,867	6,706
Total Loans	7,867	6,706
90 or More Days Past Due Still Accruing	0	0
Construction And Farmland Residential [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Residential [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Residential [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0
Construction And Farmland Commercial [Member]
Financing Receivable, Past Due [Line Items]
Past Due	187	0
Current	48,424	55,220
Total Loans	48,611	55,220
90 or More Days Past Due Still Accruing	0	0
Nonaccrual Loans	187	0
Construction And Farmland Commercial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Commercial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Construction And Farmland Commercial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	187	0
Consumer Installment [Member]
Financing Receivable, Past Due [Line Items]
Past Due	61	4
Current	9,480	8,466
Total Loans	9,541	8,470
90 or More Days Past Due Still Accruing	0	0
Nonaccrual Loans	8	0
Consumer Installment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	55	4
Consumer Installment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	6	0
Consumer Installment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Residential Equity Lines [Member]
Financing Receivable, Past Due [Line Items]
Past Due	121	0
Current	33,127	32,815
Total Loans	33,248	32,815
90 or More Days Past Due Still Accruing	0	0
Nonaccrual Loans	65	92
Residential Equity Lines [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	121	0
Residential Equity Lines [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Residential Equity Lines [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Residential Single Family [Member]
Financing Receivable, Past Due [Line Items]
Past Due	2,263	2,056
Current	184,069	186,990
Total Loans	186,332	189,046
90 or More Days Past Due Still Accruing	0	695
Nonaccrual Loans	1,244	581
Residential Single Family [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	471	960
Residential Single Family [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	541	196
Residential Single Family [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,251	900
Residential Multifamily [Member]
Financing Receivable, Past Due [Line Items]
Current	14,415	7,923
Total Loans	14,415	7,923
90 or More Days Past Due Still Accruing	0	0
All Other Loans [Member]
Financing Receivable, Past Due [Line Items]
Current	12,050	8,454
Total Loans	12,050	8,454	$ 2,050
90 or More Days Past Due Still Accruing	$ 0	$ 0

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