Loans and Leases (Loan Classifications) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 754,313	$ 729,092
Less: Allowance for loan losses	(9,747)	(9,747)	$ (9,193)	$ (9,364)
Less: Unearned lease revenue	(903)	(1,028)
Loans and leases, net	743,663	718,317
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	122,594	126,884
Less: Allowance for loan losses	(1,484)	(1,432)	$ (1,374)	$ (1,075)
Commercial Real Estate: Non-Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	99,801	95,515
Commercial Real Estate: Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	130,558	124,092
Commercial Real Estate: Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,654	6,761
Consumer: Home Equity Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	36,631	32,729
Consumer: Home Equity Line Of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	47,282	52,517
Consumer: Auto Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	105,870	105,576
Consumer: Direct Finance Leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	16,355	17,004
Consumer: Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	5,634	6,314
Residential: Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	167,164	145,951
Residential: Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 17,770	$ 15,749