Note 13 - Income Taxes - Income Tax Benefit and Effective Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Federal	$ 0	$ 0	$ 0	$ 0
State	0	0	0	0
Total current income tax expense	0	0	0	0
Federal	9,121	23,315	23,041	23,127
State	523	757	1,110	633
Deferred income tax expense	9,644	24,072	24,151	23,760
Total income tax expense	$ 9,644	$ 24,072	$ 24,151	$ 23,760