Summary Of Significant Accounting Policies (Schedule Of Warranty) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Summary Of Significant Accounting Policies [Abstract]
Beginning Balance	$ 590	$ 634
Amounts charged to expense	237	217
Actual warranty costs paid	(263)	(261)
Ending balance	$ 564	$ 590