Loans And Allowance For Loan Losses (Additional Information About Impaired Loans Held) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	$ 114,962	$ 139,255
Unpaid Principal Balance	151,125	180,048
Related Allowance	8,494	10,758
With No Related Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	26,908	35,796
Unpaid Principal Balance	36,606	55,348
Related Allowance	0	0
With Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	88,054	103,459
Unpaid Principal Balance	114,519	124,700
Related Allowance	8,494	10,758
Business [Member] | With Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	19,644	15,604
Unpaid Principal Balance	23,758	19,286
Related Allowance	1,873	1,500
Real Estate - Construction And Land [Member] | With Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	27,101	37,387
Unpaid Principal Balance	40,728	47,516
Related Allowance	2,328	2,580
Real Estate - Business [Member] | With Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	16,797	20,173
Unpaid Principal Balance	22,336	24,799
Related Allowance	2,341	2,588
Real Estate - Personal [Member] | With Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	7,601	7,867
Unpaid Principal Balance	10,746	10,671
Related Allowance	764	795
Consumer Credit Card [Member] | With Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	15,403	22,428
Unpaid Principal Balance	15,403	22,428
Related Allowance	1,166	3,295
Consumer [Member] | With Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	1,435
Unpaid Principal Balance	1,475
Related Allowance	21
Revolving Home Equity [Member] | With Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	73
Unpaid Principal Balance	73
Related Allowance	1
Business [Member] | With No Related Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	10,674	19,759
Unpaid Principal Balance	12,291	22,497
Related Allowance	0	0
Real Estate - Construction And Land [Member] | With No Related Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	7,173	8,391
Unpaid Principal Balance	13,558	22,746
Related Allowance	0	0
Real Estate - Business [Member] | With No Related Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	7,289	6,853
Unpaid Principal Balance	8,524	9,312
Related Allowance	0	0
Real Estate - Personal [Member] | With No Related Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	1,262	793
Unpaid Principal Balance	1,390	793
Related Allowance	0	0
Revolving Home Equity [Member] | With No Related Allowance Recorded [Member]
Loans And Allowance For Loan Losses [Line Items]
Recorded Investment	510
Unpaid Principal Balance	843
Related Allowance	$ 0