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Note 8 - Income Taxes (Details) - Provision for Income Taxes (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Provision for Income Taxes [Abstract]
Income taxes currently payable			$ 7,302	$ 6,269
Deferred income taxes			(1,756)	(802)
Provision for income taxes	$ 2,926	$ 2,789	$ 5,546	$ 5,467

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.