Note 8 - Income Taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ 0	$ (584)	$ (10,367)
State	3,475	5,897	5,335
Total current taxes provision (benefit)	3,475	5,313	(5,032)
Deferred
Federal	44,877	29,434	6,449
State	(3,862)	5,584	1,698
Total deferred taxes provision	41,015	35,018	8,147
Provision for income taxes from continuing operations	44,490	40,331	3,115
Provision for income taxes from continuing operations	44,490	40,331	3,115
Provision for income taxes from discontinued operations	0	136	14,855
Provision for income taxes from continuing operations and discontinued operations	$ 44,490	$ 40,467	$ 17,970