Loans And Related Allowances For Loan Losses (Loan Portfolio Segments) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	$ 14,951	$ 24,000
Collectively evaluated for impairment	877,567	867,926
Total Loans	892,518	891,926
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	9,076	17,210
Collectively evaluated for impairment	274,086	280,749
Total Loans	283,162	297,959
Acquisition and Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	976	2,525
Collectively evaluated for impairment	109,554	101,757
Total Loans	110,530	104,282
Commercial and industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	668	290
Collectively evaluated for impairment	76,055	72,056
Total Loans	76,723	72,346
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	4,201	3,975
Collectively evaluated for impairment	394,447	389,441
Total Loans	398,648	393,416
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	30	0
Collectively evaluated for impairment	23,425	23,923
Total Loans	$ 23,455	$ 23,923