Loans And Leases (Non-Accrual Loans, Segregated By Class) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 7,370	$ 9,003
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	11	30
Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	1,407	6,193
Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	3,078	988
Commercial Real Estate: Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	193	226
Consumer: Home Equity Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	31	167
Consumer Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	737	512
Consumer: Auto Loans And Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	25	45
Consumer: Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	6	6
Residential: Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 1,882	$ 836