Note 12 - 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
Income Tax Expense (Benefit), Total	$ 694	$ (1,744)	$ 1,670	$ (2,161)
Effective Income Tax Rate Reconciliation, Percent, Total	55.40%	21.40%	14.40%	20.60%
Effective Income Tax Rate Reconciliation,Change in Fair Value of Business Acquisition Contingent Consideration Liabilities, Amount			$ 1,100