Goodwill And Other Intangible Assets (Summary Of Other Intangible Assets) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Identifiable intangible assets [Abstract]
Gross carrying amount	$ 14,727,000	$ 15,598,000
Less: accumulated amortization	4,363,000	5,028,000
Net carrying amount	10,360,000	10,570,000
Community Banking [Member]
Identifiable intangible assets [Abstract]
Gross carrying amount	14,727,000	12,598,000
Less: accumulated amortization	4,363,000	2,728,000
Net carrying amount	10,364,000	9,870,000
Insurance Services [Member]
Identifiable intangible assets [Abstract]
Gross carrying amount	0	3,000,000
Less: accumulated amortization	0	2,300,000
Net carrying amount	$ 0	$ 700,000