Note 3 - Income Taxes - Major Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Domestic	$ (732)	$ 0
Foreign	(2,069)	(1,077)
Total current income tax provision	(2,801)	(1,077)
Domestic	1,250	2,477
Foreign	2,613	5,816
Total deferred income tax benefit	3,863	8,293
Total income tax benefit	$ 1,062	$ 7,216