Note 14 - Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current tax expense	$ 10,905	$ 7,777	$ 3,793
Deferred tax (benefit) expense	808	(640)	1,068
Total income tax expense	$ 11,713	$ 7,137	$ 4,861