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Note 5 - Restructuring and Other Charges (Detail) - Liability for Restructuring and Other Charges (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Balance - January 1, 2012	$ 0
Accruals for facility closure costs	359
Cash payments related to facility closure costs	(159)
Balance - March 31, 2012	$ 200

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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