Benefit Plans (Schedule Of Changes In Fair Value Of Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash Value Of Life Insurance [Member]
Defined Benefit Plan Disclosure [Line Items]
Balance	$ 62	$ 91
Unrealized gain (loss) relating to investments held at the reporting date		3
Purchases, sales, issuances and settlement, net		(32)
Balance	$ 62	62
Deposit In Immediate Participation Guarantee Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Balance	315	31
Unrealized gain (loss) relating to investments held at the reporting date	(33)	16
Purchases, sales, issuances and settlement, net	40	268
Balance	$ 322	$ 315