Loans (Summary Of Average Impaired Loans And Related Interest Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	$ 22,890	$ 19,753
Impaired loans with no related allowance, Interest Income	195	178
Impaired loans with no related allowance, Cash Basis	49	107
Impaired loans with a related allowance, Average Recorded Investment	4,293	1,879
Impaired loans with a related allowance, Interest Income	0	9
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	27,183	21,632
Total impaired loans, Interest Income	195	187
Total impaired loans, Cash Basis	49	107
Builder & Developer [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	10,732	5,245
Impaired loans with no related allowance, Interest Income	130	116
Impaired loans with no related allowance, Cash Basis	2	42
Impaired loans with a related allowance, Average Recorded Investment	194	264
Impaired loans with a related allowance, Interest Income	0	0
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	10,926	5,509
Total impaired loans, Interest Income	130	116
Total impaired loans, Cash Basis	2	42
Commercial Real Estate Investor [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	5,724	4,260
Impaired loans with no related allowance, Interest Income	67	69
Impaired loans with no related allowance, Cash Basis	36	34
Impaired loans with a related allowance, Average Recorded Investment	0	113
Impaired loans with a related allowance, Interest Income	0	1
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	5,724	4,373
Total impaired loans, Interest Income	67	70
Total impaired loans, Cash Basis	36	34
Residential Real Estate Investor [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	115	463
Impaired loans with no related allowance, Interest Income	2	1
Impaired loans with no related allowance, Cash Basis	1	1
Impaired loans with a related allowance, Average Recorded Investment	2,658	89
Impaired loans with a related allowance, Interest Income	(9)	0
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	2,773	552
Total impaired loans, Interest Income	(7)	1
Total impaired loans, Cash Basis	1	1
Hotel/Motel [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	0	0
Impaired loans with no related allowance, Interest Income	0	0
Impaired loans with no related allowance, Cash Basis	0	0
Impaired loans with a related allowance, Average Recorded Investment	0	0
Impaired loans with a related allowance, Interest Income	0	0
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	0	0
Total impaired loans, Interest Income	0	0
Total impaired loans, Cash Basis	0	0
Wholesale & Retail [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	2,988	2,955
Impaired loans with no related allowance, Interest Income	(23)	(3)
Impaired loans with no related allowance, Cash Basis	1	1
Impaired loans with a related allowance, Average Recorded Investment	0	0
Impaired loans with a related allowance, Interest Income	0	0
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	2,988	2,955
Total impaired loans, Interest Income	(23)	(3)
Total impaired loans, Cash Basis	1	1
Manufacturing [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	693	713
Impaired loans with no related allowance, Interest Income	10	10
Impaired loans with no related allowance, Cash Basis	0	0
Impaired loans with a related allowance, Average Recorded Investment	0	0
Impaired loans with a related allowance, Interest Income	0	0
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	693	713
Total impaired loans, Interest Income	10	10
Total impaired loans, Cash Basis	0	0
Agriculture [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	0	0
Impaired loans with no related allowance, Interest Income	0	0
Impaired loans with no related allowance, Cash Basis	0	0
Impaired loans with a related allowance, Average Recorded Investment	470	488
Impaired loans with a related allowance, Interest Income	8	9
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	470	488
Total impaired loans, Interest Income	8	9
Total impaired loans, Cash Basis	0	0
Other Commercial [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	1,614	5,373
Impaired loans with no related allowance, Interest Income	(2)	(23)
Impaired loans with no related allowance, Cash Basis	1	23
Impaired loans with a related allowance, Average Recorded Investment	971	925
Impaired loans with a related allowance, Interest Income	1	(1)
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	2,585	6,298
Total impaired loans, Interest Income	(1)	(24)
Total impaired loans, Cash Basis	1	23
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	84	203
Impaired loans with no related allowance, Interest Income	2	3
Impaired loans with no related allowance, Cash Basis	1	2
Impaired loans with a related allowance, Average Recorded Investment	0	0
Impaired loans with a related allowance, Interest Income	0	0
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	84	203
Total impaired loans, Interest Income	2	3
Total impaired loans, Cash Basis	1	2
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	310	246
Impaired loans with no related allowance, Interest Income	3	2
Impaired loans with no related allowance, Cash Basis	1	1
Impaired loans with a related allowance, Average Recorded Investment	0	0
Impaired loans with a related allowance, Interest Income	0	0
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	310	246
Total impaired loans, Interest Income	3	2
Total impaired loans, Cash Basis	1	1
Other Consumer [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment	630	295
Impaired loans with no related allowance, Interest Income	6	3
Impaired loans with no related allowance, Cash Basis	6	3
Impaired loans with a related allowance, Average Recorded Investment	0	0
Impaired loans with a related allowance, Interest Income	0	0
Impaired loans with a related allowance, Cash Basis	0	0
Total impaired loans, Average Recorded Investment	630	295
Total impaired loans, Interest Income	6	3
Total impaired loans, Cash Basis	$ 6	$ 3