Loans and Related Allowance for Loan Losses (Primary Segments of the Allowance for Loan Loss) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 1,720		$ 1,236
Collectively evaluated for impairment	10,491		10,829
Total allowance for loan losses	12,211	$ 11,809	12,065	$ 12,068	$ 12,463	$ 13,594
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	29		36
Collectively evaluated for impairment	2,552		2,388
Total allowance for loan losses	2,581	2,566	2,424	2,592	2,839	4,052
Acquisition and Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	1,607		1,141
Collectively evaluated for impairment	2,881		2,771
Total allowance for loan losses	4,488	3,806	3,912	3,710	3,642	4,172
Commercial and industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	734		1,680
Total allowance for loan losses	734	1,007	1,680	1,591	1,553	766
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	84		59
Collectively evaluated for impairment	3,608		3,803
Total allowance for loan losses	3,692	3,707	3,862	3,979	4,178	4,320
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	216		187
Total allowance for loan losses	216	223	187	196	251	284
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	500		0
Total allowance for loan losses	$ 500	$ 500	$ 0	$ 0	$ 0	$ 0