Loans And The Allowance For Loan Losses (Loans Classified As Troubled Debt Restructurings) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total	$ 5,726	$ 5,767
Troubled restructured loans, Nonaccruing	1,111	1,812
Troubled restructured loans, Accruing	4,615	3,955
Troubled restructured loans, Related Allowance	187	193
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total	533	517
Troubled restructured loans, Nonaccruing	481	508
Troubled restructured loans, Accruing	52	9
Troubled restructured loans, Related Allowance	160	165
Residential Real Estate: Residential [Member]
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total	1,869	1,789
Troubled restructured loans, Nonaccruing	124	689
Troubled restructured loans, Accruing	$ 1,745	$ 1,100
Residential Real Estate: Construction [Member]
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total
Troubled restructured loans, Nonaccruing
Troubled restructured loans, Accruing
Troubled restructured loans, Related Allowance
Commercial Real Estate: Commercial [Member]
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total	$ 1,702	$ 1,732
Troubled restructured loans, Nonaccruing	327	334
Troubled restructured loans, Accruing	1,375	1,398
Commercial Real Estate: Construction [Member]
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total	834	834
Troubled restructured loans, Accruing	834	834
Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total	761	867
Troubled restructured loans, Nonaccruing	179	281
Troubled restructured loans, Accruing	582	586
Consumer Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total	27	28
Troubled restructured loans, Accruing	27	28
Troubled restructured loans, Related Allowance	$ 27	$ 28
Other [Member]
Financing Receivable, Modifications [Line Items]
Troubled restructured loans, Total
Troubled restructured loans, Nonaccruing
Troubled restructured loans, Accruing
Troubled restructured loans, Related Allowance