Employee Benefit Plans (Schedule Of Liabilities Recorded) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Current portion	$ 103	$ 102
Long-term portion	485	531
Total liability at December 31	588	633
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Current portion	93	129
Long-term portion	741	803
Total liability at December 31	$ 834	$ 932