Loans and Allowance for Loan Losses (Schedule Of Financing Receivables, Non Accrual Status) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 days or more past due (still accruing)		$ 380
Non-accrual	18,582	18,597
Commercial: Commercial and industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	6,367	5,410
Commercial: Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	2,984	3,474
Commercial: Secured by commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 days or more past due (still accruing)		286
Non-accrual	6,328	7,547
Commercial: Secured by residential real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	2,102	1,158
State and political subdivisions [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 days or more past due (still accruing)		40
Non-accrual	9	4
Indirect lease financing [member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 days or more past due (still accruing)		54
Non-accrual	102	121
Retail: 1-4 family residential mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	340	515
Retail: Home equity loans and lines [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	$ 350	$ 368