Loans (Summary Of Average Impaired Loans And Related Interest Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	$ 14,269	$ 13,941	$ 14,333	$ 13,493
Impaired Loans, With No Related Allowance, Total Interest Income	192	220	567	948
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	19	70	46	499
Impaired Loans, With A Related Allowance, Average Recorded Investment	1,006	3,971	1,114	4,676
Impaired Loans, With A Related Allowance, Total Interest Income	0	7	0	32
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	13
Impaired Loans, Total, Average Recorded Investment	15,275	17,912	15,447	18,169
Impaired Loans, Total, Total Interest Income	192	227	567	980
Impaired Loans, Total, Cash Basis Interest Income	19	70	46	512
Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	13,512	13,267	13,566	12,810
Impaired Loans, With No Related Allowance, Total Interest Income	187	215	554	931
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	16	69	39	493
Impaired Loans, With A Related Allowance, Average Recorded Investment	1,006	3,971	1,114	4,676
Impaired Loans, With A Related Allowance, Total Interest Income	0	7	0	32
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	13
Impaired Loans, Total, Average Recorded Investment	14,518	17,238	14,680	17,486
Impaired Loans, Total, Total Interest Income	187	222	554	963
Impaired Loans, Total, Cash Basis Interest Income	16	69	39	506
Total Consumer Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	757	674	767	683
Impaired Loans, With No Related Allowance, Total Interest Income	5	5	13	17
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	3	1	7	6
Impaired Loans, With A Related Allowance, Average Recorded Investment	0	0	0	0
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	757	674	767	683
Impaired Loans, Total, Total Interest Income	5	5	13	17
Impaired Loans, Total, Cash Basis Interest Income	3	1	7	6
Builder & Developer [Member] | Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	3,722	4,128	3,917	4,037
Impaired Loans, With No Related Allowance, Total Interest Income	56	93	174	214
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	0	30	0	32
Impaired Loans, With A Related Allowance, Average Recorded Investment	192	1,445	96	1,745
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	3,914	5,573	4,013	5,782
Impaired Loans, Total, Total Interest Income	56	93	174	214
Impaired Loans, Total, Cash Basis Interest Income	0	30	0	32
Commercial Real Estate Investor [Member] | Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	5,854	4,935	5,876	4,704
Impaired Loans, With No Related Allowance, Total Interest Income	74	83	224	562
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	0	33	0	416
Impaired Loans, With A Related Allowance, Average Recorded Investment	0	1,106	0	1,491
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	5,854	6,041	5,876	6,195
Impaired Loans, Total, Total Interest Income	74	83	224	562
Impaired Loans, Total, Cash Basis Interest Income	0	33	0	416
Residential [Member] | Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	1,086	776	821	926
Impaired Loans, With No Related Allowance, Total Interest Income	14	5	38	19
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	0	0	0	1
Impaired Loans, With A Related Allowance, Average Recorded Investment	255	998	536	897
Impaired Loans, With A Related Allowance, Total Interest Income	0	7	0	19
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	1,341	1,774	1,357	1,823
Impaired Loans, Total, Total Interest Income	14	12	38	38
Impaired Loans, Total, Cash Basis Interest Income	0	0	0	1
Residential [Member] | Total Consumer Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	253	159	246	167
Impaired Loans, With No Related Allowance, Total Interest Income	1	1	1	4
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	1	0	1	0
Impaired Loans, With A Related Allowance, Average Recorded Investment	0	0	0	0
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	253	159	246	167
Impaired Loans, Total, Total Interest Income	1	1	1	4
Impaired Loans, Total, Cash Basis Interest Income	1	0	1	0
Hotel/Motel [Member] | Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	371	470	393	492
Impaired Loans, With No Related Allowance, Total Interest Income	0	6	2	11
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	0	6	2	11
Impaired Loans, With A Related Allowance, Average Recorded Investment	0	0	0	0
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	371	470	393	492
Impaired Loans, Total, Total Interest Income	0	6	2	11
Impaired Loans, Total, Cash Basis Interest Income	0	6	2	11
Wholesale & Retail [Member] | Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	269	385	285	389
Impaired Loans, With No Related Allowance, Total Interest Income	3	4	8	14
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	0	0	0	2
Impaired Loans, With A Related Allowance, Average Recorded Investment	0	0	0	0
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	269	385	285	389
Impaired Loans, Total, Total Interest Income	3	4	8	14
Impaired Loans, Total, Cash Basis Interest Income	0	0	0	2
Manufacturing [Member] | Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	620	638	624	645
Impaired Loans, With No Related Allowance, Total Interest Income	10	10	29	30
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Average Recorded Investment	0	0	0	0
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	620	638	624	645
Impaired Loans, Total, Total Interest Income	10	10	29	30
Impaired Loans, Total, Cash Basis Interest Income	0	0	0	0
Agriculture [Member] | Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	636	0	318	0
Impaired Loans, With No Related Allowance, Total Interest Income	16	0	17	0
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	16	0	17	0
Impaired Loans, With A Related Allowance, Average Recorded Investment	376	422	391	425
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	13
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	13
Impaired Loans, Total, Average Recorded Investment	1,012	422	709	425
Impaired Loans, Total, Total Interest Income	16	0	17	13
Impaired Loans, Total, Cash Basis Interest Income	16	0	17	13
Home Equity [Member] | Total Consumer Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	312	172	295	149
Impaired Loans, With No Related Allowance, Total Interest Income	1	0	3	0
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	1	0	2	0
Impaired Loans, With A Related Allowance, Average Recorded Investment	0	0	0	0
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	312	172	295	149
Impaired Loans, Total, Total Interest Income	1	0	3	0
Impaired Loans, Total, Cash Basis Interest Income	1	0	2	0
Other [Member] | Total Commercial Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	954	1,935	1,332	1,617
Impaired Loans, With No Related Allowance, Total Interest Income	14	14	62	81
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	0	0	20	31
Impaired Loans, With A Related Allowance, Average Recorded Investment	183	0	91	118
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	1,137	1,935	1,423	1,735
Impaired Loans, Total, Total Interest Income	14	14	62	81
Impaired Loans, Total, Cash Basis Interest Income	0	0	20	31
Other [Member] | Total Consumer Related Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans, With No Related Allowance, Average Recorded Investment	192	343	226	367
Impaired Loans, With No Related Allowance, Total Interest Income	3	4	9	13
Impaired Loans, With No Related Allowance, Cash Basis Interest Income	1	1	4	6
Impaired Loans, With A Related Allowance, Average Recorded Investment	0	0	0	0
Impaired Loans, With A Related Allowance, Total Interest Income	0	0	0	0
Impaired Loans, With A Related Allowance, Cash Basis Interest Income	0	0	0	0
Impaired Loans, Total, Average Recorded Investment	192	343	226	367
Impaired Loans, Total, Total Interest Income	3	4	9	13
Impaired Loans, Total, Cash Basis Interest Income	$ 1	$ 1	$ 4	$ 6