Note 16 - Income Tax (Benefit) Provision - Summary of Provisions for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income before taxes - U.S.	$ 79,795	$ 60,177	$ 16,649
Current	(2,811)	7,105	6,185
Deferred	(4,006)	(1,389)	(12,632)
Current	(430)	1,167	610
Deferred	(1,139)	136	(1,025)
Total	$ (8,386)	$ 7,019	$ (6,862)