Employee Benefits And Deferred Compensation Plans (Schedule Of Defined Benefit Plans Disclosures, SERP) (Details) (Supplemental Executive Retirement Plans [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Supplemental Executive Retirement Plans [Member]
Change in benefit obligation:
Benefit obligation at beginning of year	$ 3,923	$ 5,272
Service cost	168	165	180
Interest cost	159	125	153
Plan amendments
Plan settlement		105
Actuarial (gain) loss	497	(395)
Benefits paid	(192)	(1,349)
Benefit obligation at end of year	4,555	3,923	5,272
Change in plan assets:
Fair value of plan assets at beginning of year
Actual return on plan assets
Employer contributions	192	1,349
Fair value of plan assets at end of year
Funded status	(4,555)	(3,923)
Accrued benefit liabilities	(4,555)	(3,923)
Net actuarial loss	1,601	1,188
Prior service cost	249	280
Net amount recognized in equity – pre-tax	1,850	1,468
Net amount recognized on Consolidated Balance Sheets in Other Liabilities	(2,705)	(2,455)
Accumulated benefit obligation at year end	$ 3,944	$ 3,385