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Note 8 - Commitments and Contingencies (Detail) - Warranty Liability (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Warranty Liability	$ 313	$ 215	$ 199
Net aggregate expense related to product warranties	1,208	650	170
Aggregate reductions for payments	(745)	(552)	(154)
Warranty Liability	$ 776	$ 313	$ 215

- 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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