Note 13 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income tax expense at U.S. federal statutory rate	$ 9,233	$ 8,709	$ 11,067	$ 22,309
Limited tax benefit due to stock-based compensation	4,059	451	4,436	740
State deferred income taxes	496	523	895	1,110
Other, net	462	(39)	149	(8)
Provision for income taxes	$ 14,250	$ 9,644	$ 16,547	$ 24,151
Effective income tax rate	32.40%	23.30%	31.40%	22.70%