Loans (Summary Of Activity In Allowance For Loan And Lease Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Provision for loan losses	$ 1,086	$ 1,146	$ 2,657	$ 2,828
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			7,172	7,076
Charge-offs			(25)	(12)
Recoveries			135	1,199
Net recoveries (charge-offs)			110	1,187
Provision for loan losses			252	(773)
Ending balance	7,534	7,490	7,534	7,490
Period-end amount allocated to:
Loans individually evaluated for impairment					$ 136	$ 1,164
Loans collectively evaluated for impairment					7,398	6,326
Ending balance	7,534	7,490	7,172	7,076	7,534	7,490
Total loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			18,196	16,539
Charge-offs			(3,276)	(4,054)
Recoveries			1,182	2,733
Net recoveries (charge-offs)			(2,094)	(1,321)
Provision for loan losses			2,775	2,743
Ending balance	18,877	17,961	18,877	17,961
Period-end amount allocated to:
Loans individually evaluated for impairment					747	1,792
Loans collectively evaluated for impairment					18,130	16,169
Ending balance	18,877	17,961	18,196	16,539	18,877	17,961
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			6,353	5,382
Charge-offs			(165)	(1,017)
Recoveries			1	250
Net recoveries (charge-offs)			(164)	(767)
Provision for loan losses			226	1,075
Ending balance	6,415	5,690	6,415	5,690
Period-end amount allocated to:
Loans individually evaluated for impairment					424	506
Loans collectively evaluated for impairment					5,991	5,184
Ending balance	6,415	5,690	6,353	5,382	6,415	5,690
Residential real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			982	1,257
Charge-offs			(451)	(524)
Recoveries			128	193
Net recoveries (charge-offs)			(323)	(331)
Provision for loan losses			265	194
Ending balance	924	1,120	924	1,120
Period-end amount allocated to:
Loans individually evaluated for impairment					151	122
Loans collectively evaluated for impairment					773	998
Ending balance	924	1,120	982	1,257	924	1,120
Home equity lines of credit
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			688	732
Charge-offs			(100)	(58)
Recoveries			9	33
Net recoveries (charge-offs)			(91)	(25)
Provision for loan losses			82	(21)
Ending balance	679	686	679	686
Period-end amount allocated to:
Loans individually evaluated for impairment					13	0
Loans collectively evaluated for impairment					666	686
Ending balance	679	686	688	732	679	686
Consumer, indirect
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			2,312	1,934
Charge-offs			(1,493)	(1,502)
Recoveries			598	727
Net recoveries (charge-offs)			(895)	(775)
Provision for loan losses			1,397	1,081
Ending balance	2,814	2,240	2,814	2,240
Period-end amount allocated to:
Loans individually evaluated for impairment					2	0
Loans collectively evaluated for impairment					2,812	2,240
Ending balance	2,814	2,240	2,312	1,934	2,814	2,240
Consumer, other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			518	37
Charge-offs			(275)	(397)
Recoveries			152	183
Net recoveries (charge-offs)			(123)	(214)
Provision for loan losses			46	769
Ending balance	441	592	441	592
Period-end amount allocated to:
Loans individually evaluated for impairment					21	0
Loans collectively evaluated for impairment					420	592
Ending balance	441	592	518	37	441	592
Deposit account overdrafts
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance			171	121
Charge-offs			(767)	(544)
Recoveries			159	148
Net recoveries (charge-offs)			(608)	(396)
Provision for loan losses			507	418
Ending balance	70	143	70	143
Period-end amount allocated to:
Loans individually evaluated for impairment					0	0
Loans collectively evaluated for impairment					70	143
Ending balance	70	143	171	121	70	143
Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	90	197	233	240
Charge-offs	0	(16)	0	(67)
Recoveries	0	0	0	0
Net recoveries (charge-offs)	0	(16)	0	(67)
Ending balance	115	258	115	258
Period-end amount allocated to:
Ending balance	$ 90	$ 197	$ 233	$ 240	$ 115	$ 258