Employee Benefits And Deferred Compensation Plans (Schedule Of Net Periodic Benefit Costs, Employee Pension Plan) (Details) (Pension [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost
Interest cost	206	192	213
Expected return on plan assets	(307)	(260)	(227)
Net amortization and deferral	22	65	63
Net periodic benefit cost	$ (79)	$ (3)	$ 49