Components of Net Periodic Pension Cost (Schedule Of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 132	$ 135	$ 264	$ 278
Net amortization and deferral	(54)	(12)	(56)	(42)
Net periodic pension cost	$ 78	$ 123	$ 208	$ 236