Note 12 - Income Taxes - Income Tax (Benefit) Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Federal	$ (2,726)	$ (773)	$ (250)
State	286	227	47
Foreign	(1,084)	(6,830)	5,365
Total current income tax (benefit) expense	(3,524)	(7,376)	5,162
Federal	343	379	(5,497)
State	49	48	(372)
Foreign	(2,317)	(1,428)	(1,182)
Total deferred income (benefit) expense	(1,925)	(1,001)	(7,051)
Income tax (benefit) expense	$ (5,449)	$ (8,377)	$ (1,889)