Note 14 - Income Taxes - Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current provision (benefit) for income taxes, Federal	$ (28,644)	$ (203)	$ (67)
Current provision (benefit) for income taxes, State	1	(101)	304
Current provision (benefit) for income taxes, Total	(28,643)	(304)	237
Deferred provision (benefit) for income taxes, Federal	6,837	(2,933)	(4,208)
Deferred provision (benefit) for income taxes, State	(4,781)	(578)	(2,104)
Deferred provision (benefit) for income taxes, Total	2,056	(3,511)	(6,312)
Benefit for income taxes	$ (26,587)	$ (3,815)	$ (6,075)