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Note 8 - Income Taxes (Detail) - Income tax expense benefit and effective income tax rate (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income tax expense (in Dollars)	$ 1,651	$ 2,289
Effective income tax rate	65.50%	40.40%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

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

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