Loans And The Allowance For Loan Losses (Loans Classified As Troubled Debt Restructurings) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Modifications [Line Items]
Total	$ 5,064	$ 5,767
Related Allowance	187	193
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	493	517
Related Allowance	160	165
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Total	27	28
Related Allowance	27	28
Nonaccruing [Member]
Financing Receivable, Modifications [Line Items]
Total	1,176	1,812
Nonaccruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	450	508
Accruing [Member]
Financing Receivable, Modifications [Line Items]
Total	3,888	3,955
Accruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	43	9
Accruing [Member] | Consumer [Member]
Financing Receivable, Modifications [Line Items]
Total	27	28
Total Real Estate Loans [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	674	867
Total Real Estate Loans [Member] | Nonaccruing [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	178	281
Total Real Estate Loans [Member] | Accruing [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	496	586
Mortgages [Member] | Total Real Estate Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	1,962	1,789
Mortgages [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	1,646	1,732
Mortgages [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	231	689
Mortgages [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	317	334
Mortgages [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	1,731	1,100
Mortgages [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	1,329	1,398
Construction [Member] | Total Real Estate Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total
Related Allowance
Construction [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	262	834
Construction [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total
Construction [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total
Construction [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	$ 262	$ 834