Loans and Related Allowance for Loan Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 880,430	$ 871,989
Total Past Due and Still Accruing	6,053	5,991
Non-Accrual	9,472	13,946
Total Loans	895,955	891,926
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	2,405	1,908
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	2,432	3,663
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	1,216	420
Commercial real estate- non owner-occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	146,350	150,595
Total Past Due and Still Accruing	1,672	182
Non-Accrual	5,000	6,381
Total Loans	153,022	157,158
Commercial real estate- non owner-occupied [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	1,601	182
Commercial real estate- non owner-occupied [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	71	0
Commercial real estate- non owner-occupied [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	0
Commercial real estate- all other CRE [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	127,764	134,931
Total Past Due and Still Accruing	0	40
Non-Accrual	2,788	5,830
Total Loans	130,552	140,801
Commercial real estate- all other CRE [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	40
Commercial real estate- all other CRE [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	0
Commercial real estate- all other CRE [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	0
Acquisition and development- 1-4 family residential construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	16,309	15,845
Total Past Due and Still Accruing	0	0
Non-Accrual	0	0
Total Loans	16,309	15,845
Acquisition and development- 1-4 family residential construction [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	0
Acquisition and development- 1-4 family residential construction [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	0
Acquisition and development- 1-4 family residential construction [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	0
Acquisition and development- All other A&D [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	95,173	88,353
Total Past Due and Still Accruing	156	39
Non-Accrual	40	45
Total Loans	95,369	88,437
Acquisition and development- All other A&D [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	0
Acquisition and development- All other A&D [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	65	39
Acquisition and development- All other A&D [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	91	0
Commercial and industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	73,682	72,324
Total Past Due and Still Accruing	9	22
Non-Accrual	0	0
Total Loans	73,691	72,346
Commercial and industrial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	0	9
Commercial and industrial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	1	2
Commercial and industrial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	8	11
Residential mortgage- term [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	323,351	310,721
Total Past Due and Still Accruing	2,956	4,205
Non-Accrual	1,402	1,539
Total Loans	327,709	316,465
Residential mortgage- term [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	271	517
Residential mortgage- term [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	2,104	3,376
Residential mortgage- term [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	581	312
Residential mortgage- home equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	74,167	75,558
Total Past Due and Still Accruing	1,080	1,242
Non-Accrual	242	151
Total Loans	75,489	76,951
Residential mortgage- home equity [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	429	974
Residential mortgage- home equity [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	135	198
Residential mortgage- home equity [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	516	70
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	23,634	23,662
Total Past Due and Still Accruing	180	261
Non-Accrual	0	0
Total Loans	23,814	23,923
Consumer [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	104	186
Consumer [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	56	48
Consumer [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment Past Due	$ 20	$ 27