Note 10 - Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal	$ 29,955	$ (2,196)	$ 20,943
State	44,416	36,787	39,466
Total Current	74,371	34,591	60,409
Federal	5,986	(3,234)	7,464
State	3,182	(6,252)	2,361
Total Deferred	9,168	(9,486)	9,825
Total income tax expense, amount	$ 83,539	$ 25,105	$ 70,234