Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Expense (Benefit), Total	$ 6,907	$ 2,761	$ 3,412	$ 3,293
Effective Income Tax Rate Reconciliation, Percent, Total	11.10%	8.60%	2.70%	4.10%