Loans And Related Allowances For Loan Losses (Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,052,118	$ 1,007,714
Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	169,213	150,512
Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	166,291	156,409
Acquisition and development- 1-4 family residential construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	10,781	16,003
Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	107,109	102,357
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	122,352	111,466
Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	371,555	364,008
Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	68,618	72,899
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	36,199	34,060
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,016,905	976,864
Pass [Member] | Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	164,584	145,260
Pass [Member] | Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	157,407	149,076
Pass [Member] | Acquisition and development- 1-4 family residential construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	10,781	16,003
Pass [Member] | Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	98,823	94,428
Pass [Member] | Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	116,221	107,174
Pass [Member] | Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	365,899	359,305
Pass [Member] | Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	67,143	71,666
Pass [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	36,047	33,952
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	12,437	15,884
Special Mention [Member] | Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,765	2,904
Special Mention [Member] | Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	6,556	1,752
Special Mention [Member] | Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	18	7,378
Special Mention [Member] | Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,896	3,703
Special Mention [Member] | Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	59
Special Mention [Member] | Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	139	143
Special Mention [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4	4
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	22,776	14,966
Substandard [Member] | Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,864	2,348
Substandard [Member] | Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,328	5,581
Substandard [Member] | Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,268	551
Substandard [Member] | Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,235	589
Substandard [Member] | Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,597	4,703
Substandard [Member] | Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,336	1,090
Substandard [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 148	$ 104