Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Income Tax Expense (Benefit), Total	$ (1,623)	$ 1,580
Effective Income Tax Rate Reconciliation, Percent, Total	(133.60%)	21.40%
Effective Income Tax Rate Reconciliation,Change in Fair Value of Business Acquisition Contingent Consideration Liabilities, Amount	$ (1,700)
Deferred Tax Assets, Valuation Allowance, Total			$ 900