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Product Warranty (Changes In Warranty Liability) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Product Warranty [Abstract]
Product warranty period	1 year
Beginning balance	$ 73	$ 82
Warranty expense	123	42
Closed warranty claims	(118)	(51)
Ending balance	$ 78	$ 73

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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