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Note 5 - Income Taxes (Details) - Major Components of Income Tax Provision (Benefit) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Major Components of Income Tax Provision (Benefit) [Abstract]
Domestic	$ 7,761us-gaap_CurrentFederalTaxExpenseBenefit	$ 2,963us-gaap_CurrentFederalTaxExpenseBenefit	$ (7,086)us-gaap_CurrentFederalTaxExpenseBenefit
Foreign	(619)us-gaap_CurrentForeignTaxExpenseBenefit	(175)us-gaap_CurrentForeignTaxExpenseBenefit	(459)us-gaap_CurrentForeignTaxExpenseBenefit
Total current income tax benefit (provision)	7,142us-gaap_CurrentIncomeTaxExpenseBenefit	2,788us-gaap_CurrentIncomeTaxExpenseBenefit	(7,545)us-gaap_CurrentIncomeTaxExpenseBenefit
Domestic	(1,572)	247	(1,334)
Foreign	(330)	6,760
Total deferred income tax benefit (provision)	(1,902)us-gaap_DeferredIncomeTaxExpenseBenefit	7,007us-gaap_DeferredIncomeTaxExpenseBenefit	(1,334)us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax benefit (provision)	$ 5,240us-gaap_IncomeTaxExpenseBenefit	$ 9,795us-gaap_IncomeTaxExpenseBenefit	$ (8,879)us-gaap_IncomeTaxExpenseBenefit

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

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

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

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

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