Note 9 - Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Taxes.
Total income tax expense (benefit)	$ 10,655	$ (166)
Effective Income Tax Rate Reconciliation, Percent, Total	19.50%	5.00%
Statutory rate	21.00%