Loans And Leases (Credit Quality Indicator Loan Categories) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Unearned lease revenue	$ 482	$ 335
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	98,477	102,653
Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	93,364	95,745
Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	106,960	101,652
Commercial Real Estate: Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	3,987	4,481
Commercial Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	302,788	304,531
Consumer: Home Equity Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	28,466	30,935
Consumer Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	51,609	48,060
Consumer: Auto Loans And Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	56,359	29,423
Consumer: Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	13,301	6,208
Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	149,735	114,626
Residential: Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	134,475	126,992
Residential: Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	10,496	10,060
Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	144,971	137,052
Consumer And Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	294,706	251,678
Pass [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	97,308	101,342
Pass [Member] | Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	83,962	82,152
Pass [Member] | Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	99,981	96,401
Pass [Member] | Commercial Real Estate: Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	3,794	4,255
Pass [Member] | Commercial Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	285,045	284,150
Special mention [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	479	189
Special mention [Member] | Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	1,811	1,480
Special mention [Member] | Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	1,075	657
Special mention [Member] | Commercial Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	3,365	2,326
Substandard [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	690	1,122
Substandard [Member] | Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	7,591	12,113
Substandard [Member] | Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	5,904	4,594
Substandard [Member] | Commercial Real Estate: Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	193	226
Substandard [Member] | Commercial Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	14,378	18,055
Performing [Member] | Consumer: Home Equity Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	28,435	30,768
Performing [Member] | Consumer Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	50,872	47,548
Performing [Member] | Consumer: Auto Loans And Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	56,315	29,347
Performing [Member] | Consumer: Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	13,295	6,172
Performing [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	148,917	113,835
Performing [Member] | Residential: Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	132,593	126,156
Performing [Member] | Residential: Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	10,496	10,060
Performing [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	143,089	136,216
Performing [Member] | Consumer And Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	292,006	250,051
Non-performing [Member] | Consumer: Home Equity Installment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	31	167
Non-performing [Member] | Consumer Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	737	512
Non-performing [Member] | Consumer: Auto Loans And Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	44	76
Non-performing [Member] | Consumer: Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	6	36
Non-performing [Member] | Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	818	791
Non-performing [Member] | Residential: Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	1,882	836
Non-performing [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	1,882	836
Non-performing [Member] | Consumer And Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, net	$ 2,700	$ 1,627