Summary Of Significant Accounting Policies (Schedule Of Supplemental Disclosures Of Cash Flow Information) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash paid during the year for:
Interest	$ 3	$ 22	$ 89
Income taxes	$ 5,693	$ 1,263	$ 3,564