Goodwill And Other Intangible Assets (Summary Of Other Intangible Assets) (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Identifiable intangible assets [Abstract]
Gross carrying amount	$ 15,598,000	$ 15,598,000
Less: accumulated amortization	5,028,000	3,357,000
Net carrying amount	10,570,000	12,241,000
Community Banking [Member]
Identifiable intangible assets [Abstract]
Gross carrying amount	12,598,000	12,598,000
Less: accumulated amortization	2,728,000	1,257,000
Net carrying amount	9,870,000	11,341,000
Insurance Services [Member]
Identifiable intangible assets [Abstract]
Gross carrying amount	3,000,000	3,000,000
Less: accumulated amortization	2,300,000	2,100,000
Net carrying amount	$ 700,000	$ 900,000