Loans And Leases (Past Due Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 9,630	$ 13,066
Current	587,864	543,143
Total loans	597,494	556,209
Recorded investment past due >=90 days and accruing	19	356
Non-accrual loans	7,370	9,003
Unearned lease revenue	482	335
Deferred loan costs	1,800	1,500
30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	958	1,391
60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,283	2,316
Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	7,389	9,359
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	219	112
Current	98,258	102,541
Total loans	98,477	102,653
Recorded investment past due >=90 days and accruing		12
Non-accrual loans	11	30
Commercial And Industrial [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	208	38
Commercial And Industrial [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		32
Commercial And Industrial [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	11	42
Commercial Real Estate: Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,587	8,307
Current	91,777	87,438
Total loans	93,364	95,745
Recorded investment past due >=90 days and accruing		283
Non-accrual loans	1,407	6,193
Commercial Real Estate: Non-Owner Occupied [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	180	549
Commercial Real Estate: Non-Owner Occupied [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		1,282
Commercial Real Estate: Non-Owner Occupied [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,407	6,476
Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,867	1,073
Current	103,093	100,579
Total loans	106,960	101,652
Non-accrual loans	3,078	988
Commercial Real Estate: Owner Occupied [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	13
Commercial Real Estate: Owner Occupied [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	776	85
Commercial Real Estate: Owner Occupied [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,078	988
Commercial Real Estate: Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	193	226
Current	3,794	4,255
Total loans	3,987	4,481
Non-accrual loans	193	226
Commercial Real Estate: Construction [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	193	226
Consumer: Home Equity Installment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	269	448
Current	28,197	30,487
Total loans	28,466	30,935
Non-accrual loans	31	167
Consumer: Home Equity Installment [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	213	189
Consumer: Home Equity Installment [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	25	92
Consumer: Home Equity Installment [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	31	167
Consumer Home Equity Line Of Credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	737	1,271
Current	50,872	46,789
Total loans	51,609	48,060
Non-accrual loans	737	512
Consumer Home Equity Line Of Credit [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		109
Consumer Home Equity Line Of Credit [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		650
Consumer Home Equity Line Of Credit [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	737	512
Consumer: Auto Loans And Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	396	514
Current	55,963	28,909
Total loans	56,359	29,423
Recorded investment past due >=90 days and accruing	19	31
Non-accrual loans	25	45
Consumer: Auto Loans And Leases [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	293	394
Consumer: Auto Loans And Leases [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	59	44
Consumer: Auto Loans And Leases [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	44	76
Consumer: Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	45	102
Current	13,256	6,106
Total loans	13,301	6,208
Recorded investment past due >=90 days and accruing		30
Non-accrual loans	6	6
Consumer: Other [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	37	66
Consumer: Other [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2
Consumer: Other [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	6	36
Residential: Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,317	1,013
Current	132,158	125,979
Total loans	134,475	126,992
Non-accrual loans	1,882	836
Residential: Real Estate [Member] | 30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	14	46
Residential: Real Estate [Member] | 60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	421	131
Residential: Real Estate [Member] | Past Due 90 Days Or More [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,882	836
Residential: Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	10,496	10,060
Total loans	$ 10,496	$ 10,060