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Note 2 - Summary of Significant Accounting Policies (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	Sep. 30, 2012	Sep. 30, 2011
Inventory Adjustments (in Dollars)	$ 522	$ 278		$ 522	$ 278
Income Tax Expense (Benefit) (in Dollars)	348	(2,762)		980	(2,624)
Valuation Allowance, Deferred Tax Asset, Change in Amount (in Dollars)			$ (3,110)

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

The amount of the change in the period in the valuation allowance for a specified deferred tax asset.