Note 16 - Income Taxes - Change in Valuation Allowance for Deferred Tax Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 2,993	$ 8,498	$ 8,706
Deferred tax liabilities assumed through acquisitions	0	(8,498)	(3,297)
Charged to income tax expense	30,409	2,993	3,089
Balance	$ 33,402	$ 2,993	$ 8,498