Loans (Schedule Of Acquired Purchase Credit Impaired Loans By Portfolio Segment) (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	$ 29,106,000	$ 39,716,000	$ 29,597,000
Unpaid balance	36,239,000	48,686,000	37,551,000
Commercial Financial And Industrial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	12,917,000	16,063,000	4,665,000
Unpaid balance	14,953,000	18,573,000	5,437,000
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	12,645,000	19,929,000	23,013,000
Unpaid balance	16,700,000	25,504,000	29,205,000
Consumer Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	3,491,000	3,672,000	1,910,000
Unpaid balance	4,512,000	4,533,000	2,897,000
Credit Card And Other Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value	53,000	52,000	9,000
Unpaid balance	$ 74,000	$ 76,000	$ 12,000