Employee Benefit Plans (Schedule Of Liabilities Recorded) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Current portion	$ 103	$ 103
Long-term portion	542	485
Total liability at December 31	645	588
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Current portion	93	93
Long-term portion	805	741
Total liability at December 31	$ 898	$ 834