Marketable Securities (Schedule Of Marketable Securities Classified As Cash Equivalents) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Gain (Loss) on Investments [Line Items]
Cost	$ 30	$ 327
Unrealized Gains	0	0
Unrealized Losses	0	0
Recorded Basis	30	327
Corporate Debt Securities And Certificates Of Deposit [Member]
Gain (Loss) on Investments [Line Items]
Cost	30	327
Unrealized Gains	0	0
Unrealized Losses	0	0
Recorded Basis	$ 30	$ 327