Loans and Leases (Non-Accrual Loans, Segregated by Class) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Non-accrual loans	$ 3,674	$ 4,298
Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Non-accrual loans	336	156
Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Past Due [Line Items]
Non-accrual loans	510	472
Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Past Due [Line Items]
Non-accrual loans	1,447	1,634
Consumer: Home Equity Installment [Member]
Financing Receivable, Past Due [Line Items]
Non-accrual loans	65	463
Consumer: Home Equity Line Of Credit [Member]
Financing Receivable, Past Due [Line Items]
Non-accrual loans	294	34
Consumer: Auto Loans [Member]
Financing Receivable, Past Due [Line Items]
Non-accrual loans	16	25
Residential: Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Non-accrual loans	$ 1,006	$ 1,514