Note 11 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Income Tax Expense (Benefit), Total	$ 2,228	$ 3,700	$ 5,790	$ 10,106
Effective Income Tax Rate Reconciliation, Percent, Total	31.50%	20.10%	21.20%	19.70%
Effective Income Tax Rate Continuing Operations Increase (Decrease) During the Period	11.40%		1.50%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%
Unrecognized Tax Benefits, Ending Balance	$ 5,000		$ 5,000		$ 4,800