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Commitments and Contingencies - Warranty (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Schedule of Changes in Reserve for Product Warranty Claim Costs
Balance at Beginning of Period	$ 404	$ 6
Accruals (Reductions) for Warranties Issued During the Period	375	0
Settlements (in Cash or in Kind) During the Period	(500)	0
Balance at End of Period	$ 279	$ 6

- 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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