Loans And The Allowance For Loan Losses (Loans Classified As Troubled Debt Restructurings) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financing Receivable, Modifications [Line Items]
Total	$ 9,012	$ 5,090
Related Allowance	317	174
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	692	574
Related Allowance	135	147
Consumer And Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Total	32	26
Related Allowance	32	26
Nonaccruing [Member]
Financing Receivable, Modifications [Line Items]
Total	1,669	1,247
Nonaccruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	679	532
Nonaccruing [Member] | Consumer And Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Total
Accruing [Member]
Financing Receivable, Modifications [Line Items]
Total	7,343	3,843
Accruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	13	42
Accruing [Member] | Consumer And Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Total	32	26
Total Real Estate Loans [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	630	667
Related Allowance		1
Total Real Estate Loans [Member] | Nonaccruing [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	174	175
Total Real Estate Loans [Member] | Accruing [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	456	492
Mortgages [Member] | Total Real Estate Loans [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total	2,065	1,949
Related Allowance
Mortgages [Member] | Total Real Estate Loans [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total	5,593	1,617
Related Allowance	150
Mortgages [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total	233	227
Mortgages [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total	583	313
Mortgages [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total	1,832	1,722
Mortgages [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total	5,010	1,304
Construction [Member] | Total Real Estate Loans [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total
Related Allowance
Construction [Member] | Total Real Estate Loans [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total		257
Related Allowance
Construction [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total
Construction [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total
Construction [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total
Construction [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Total		$ 257