Loans and Related Allowance for Loan Losses (Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 845,090	$ 839,991
Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	141,032	137,433
Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	120,143	118,631
Acquisition and development- 1-4 family residential construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	15,932	13,710
Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	78,941	85,591
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	93,531	93,255
Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	296,170	291,426
Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	74,785	76,215
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	24,556	23,730
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	770,583	758,307
Pass [Member] | Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	118,276	115,276
Pass [Member] | Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	92,069	90,740
Pass [Member] | Acquisition and development- 1-4 family residential construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	15,232	12,920
Pass [Member] | Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	72,030	72,323
Pass [Member] | Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	89,473	88,579
Pass [Member] | Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	285,546	280,113
Pass [Member] | Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	73,438	74,698
Pass [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	24,519	23,658
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	22,212	22,211
Special Mention [Member] | Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	11,754	10,884
Special Mention [Member] | Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	9,397	8,618
Special Mention [Member] | Acquisition and development- 1-4 family residential construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0	0
Special Mention [Member] | Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	78	1,356
Special Mention [Member] | Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	688	884
Special Mention [Member] | Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	246	379
Special Mention [Member] | Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	49	90
Special Mention [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	0	0
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	52,295	59,473
Substandard [Member] | Commercial real estate- non owner-occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	11,002	11,273
Substandard [Member] | Commercial real estate- all other CRE [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	18,677	19,273
Substandard [Member] | Acquisition and development- 1-4 family residential construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	700	790
Substandard [Member] | Acquisition and development- All other A&D [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	6,833	11,912
Substandard [Member] | Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,370	3,792
Substandard [Member] | Residential mortgage- term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	10,378	10,934
Substandard [Member] | Residential mortgage- home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,298	1,427
Substandard [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 37	$ 72