Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Income Tax Expense (Benefit), Total	$ (775)	$ (1,623)
Effective Income Tax Rate Reconciliation, Percent, Total	20.90%	133.60%
Unrecognized Tax Benefits, Ending Balance	$ 0
Foreign Tax Authority [Member] | Ministry of Economic Affairs and Finance, Italy [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount			$ (900)