Note 13 - Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Beginning Balance	$ 4,945	$ 2,422
Additions based on tax positions related to the current year	1,621	2,589
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions		(66)
Ending Balance	$ 6,566	$ 4,945