Pension Plans And Other Postretirement Benefits (Schedule Of Amounts Recognized In Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Pension and postretirement benefit obligations-current	$ (276)	$ (267)
Pension and postretirement benefit obligations-long term	(8,833)	(6,007)
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension and postretirement benefit obligations-current	(234)	(267)
Pension and postretirement benefit obligations-long term	(7,823)	(5,110)
Total	(8,057)	(5,377)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension and postretirement benefit obligations-long term	(771)	(636)
Total	$ (771)	$ (636)