Summary of Significant Accounting Policies (Changes In Warranty Liability) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Product Warranty [Abstract]
Beginning balance	$ 73	$ 82	$ 105
Warranty expense	123	42	27
Closed warranty claims	(124)	(51)	(50)
Ending balance	$ 72	$ 73	$ 82