Loans (Summary Of Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	$ 21,464	$ 24,316
Impaired loans with no related allowance, Unpaid Principal Balance	24,051	26,921
Impaired loans with related allowance, Recorded Investment	4,227	4,358
Impaired loans with related allowance, Unpaid Principal Balance	4,227	4,358
Total impaired loans, Recorded Investment	25,691	28,674
Total impaired loans, Unpaid Principal Balance	28,278	31,279
Total impaired loans, Related Allowance	1,032	1,162
Builder & Developer [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	9,254	12,211
Impaired loans with no related allowance, Unpaid Principal Balance	9,254	12,211
Impaired loans with related allowance, Recorded Investment	132	256
Impaired loans with related allowance, Unpaid Principal Balance	132	256
Total impaired loans, Recorded Investment	9,386	12,467
Total impaired loans, Unpaid Principal Balance	9,386	12,467
Total impaired loans, Related Allowance	62	147
Commercial Real Estate Investor [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	5,712	5,736
Impaired loans with no related allowance, Unpaid Principal Balance	5,812	5,836
Impaired loans with related allowance, Recorded Investment	0	0
Impaired loans with related allowance, Unpaid Principal Balance	0	0
Total impaired loans, Recorded Investment	5,712	5,736
Total impaired loans, Unpaid Principal Balance	5,812	5,836
Total impaired loans, Related Allowance	0	0
Residential Real Estate Investor [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	157	72
Impaired loans with no related allowance, Unpaid Principal Balance	157	72
Impaired loans with related allowance, Recorded Investment	2,657	2,659
Impaired loans with related allowance, Unpaid Principal Balance	2,657	2,659
Total impaired loans, Recorded Investment	2,814	2,731
Total impaired loans, Unpaid Principal Balance	2,814	2,731
Total impaired loans, Related Allowance	700	700
Hotel/Motel [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	0	0
Impaired loans with no related allowance, Unpaid Principal Balance	0	0
Impaired loans with related allowance, Recorded Investment	0	0
Impaired loans with related allowance, Unpaid Principal Balance	0	0
Total impaired loans, Recorded Investment	0	0
Total impaired loans, Unpaid Principal Balance	0	0
Total impaired loans, Related Allowance	0	0
Wholesale & Retail [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	2,928	3,048
Impaired loans with no related allowance, Unpaid Principal Balance	5,203	5,323
Impaired loans with related allowance, Recorded Investment	0	0
Impaired loans with related allowance, Unpaid Principal Balance	0	0
Total impaired loans, Recorded Investment	2,928	3,048
Total impaired loans, Unpaid Principal Balance	5,203	5,323
Total impaired loans, Related Allowance	0	0
Manufacturing [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	688	699
Impaired loans with no related allowance, Unpaid Principal Balance	688	699
Impaired loans with related allowance, Recorded Investment	0	0
Impaired loans with related allowance, Unpaid Principal Balance	0	0
Total impaired loans, Recorded Investment	688	699
Total impaired loans, Unpaid Principal Balance	688	699
Total impaired loans, Related Allowance	0	0
Agriculture [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	0	0
Impaired loans with no related allowance, Unpaid Principal Balance	0	0
Impaired loans with related allowance, Recorded Investment	469	471
Impaired loans with related allowance, Unpaid Principal Balance	469	471
Total impaired loans, Recorded Investment	469	471
Total impaired loans, Unpaid Principal Balance	469	471
Total impaired loans, Related Allowance	100	100
Other Commercial [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	1,745	1,483
Impaired loans with no related allowance, Unpaid Principal Balance	1,873	1,611
Impaired loans with related allowance, Recorded Investment	969	972
Impaired loans with related allowance, Unpaid Principal Balance	969	972
Total impaired loans, Recorded Investment	2,714	2,455
Total impaired loans, Unpaid Principal Balance	2,842	2,583
Total impaired loans, Related Allowance	170	215
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	83	85
Impaired loans with no related allowance, Unpaid Principal Balance	109	111
Impaired loans with related allowance, Recorded Investment	0	0
Impaired loans with related allowance, Unpaid Principal Balance	0	0
Total impaired loans, Recorded Investment	83	85
Total impaired loans, Unpaid Principal Balance	109	111
Total impaired loans, Related Allowance	0	0
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	279	340
Impaired loans with no related allowance, Unpaid Principal Balance	279	340
Impaired loans with related allowance, Recorded Investment	0	0
Impaired loans with related allowance, Unpaid Principal Balance	0	0
Total impaired loans, Recorded Investment	279	340
Total impaired loans, Unpaid Principal Balance	279	340
Total impaired loans, Related Allowance	0	0
Other Consumer [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	618	642
Impaired loans with no related allowance, Unpaid Principal Balance	676	718
Impaired loans with related allowance, Recorded Investment	0	0
Impaired loans with related allowance, Unpaid Principal Balance	0	0
Total impaired loans, Recorded Investment	618	642
Total impaired loans, Unpaid Principal Balance	676	718
Total impaired loans, Related Allowance	$ 0	$ 0