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Note 9 - Guarantees (Detail) - Warranty Liability (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Balance - January 1, 2013	$ 197
Payments made under product warranty	(18)
Accruals for product warranty	19	45
Balance - March 31, 2013	$ 198

- 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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