Loans And The Allowance For Loan Losses (Loans Classified As Troubled Debt Restructurings) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Modifications [Line Items]
Total	$ 9,055	$ 5,090
Related Allowance	439	174
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	729	574
Related Allowance	168	147
Consumer And Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Total	26	26
Related Allowance	26	26
Nonaccruing [Member]
Financing Receivable, Modifications [Line Items]
Total	1,718	1,247
Nonaccruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	714	532
Nonaccruing [Member] | Consumer And Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Total
Accruing [Member]
Financing Receivable, Modifications [Line Items]
Total	7,337	3,843
Accruing [Member] | Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Total	15	42
Accruing [Member] | Consumer And Other Loans [Member]
Financing Receivable, Modifications [Line Items]
Total	26	26
Total Real Estate Loans [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	638	667
Related Allowance		1
Total Real Estate Loans [Member] | Nonaccruing [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	177	175
Total Real Estate Loans [Member] | Accruing [Member] | Home Equities [Member]
Financing Receivable, Modifications [Line Items]
Total	461	492
Mortgages [Member] | Total Real Estate Loans [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	1,949	1,949
Related Allowance
Mortgages [Member] | Total Real Estate Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	5,713	1,617
Related Allowance	245
Mortgages [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	235	227
Mortgages [Member] | Total Real Estate Loans [Member] | Nonaccruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	592	313
Mortgages [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	1,714	1,722
Mortgages [Member] | Total Real Estate Loans [Member] | Accruing [Member] | Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Total	5,121	1,304
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		257
Related Allowance
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] | Nonaccruing [Member] | Commercial 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		$ 257