Note 5 - Income Taxes (Details) - Major Components of Income Tax Provision (Benefit) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Domestic	$ 3,892	$ 7,761	$ 2,963
Foreign	(5,376)	(619)	(175)
Total current income tax (provision) benefit	(1,484)	7,142	2,788
Deferred:
Domestic	(75,456)	(1,572)	247
Foreign	20,630	(330)	6,760
Total deferred income tax (provision) benefit	(54,826)	(1,902)	7,007
Total income tax benefit (provision)	$ (56,310)	$ 5,240	$ 9,795