Note 11 - Income Tax - Schedule of Uncertain Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Gross UTB balance at beginning of fiscal year	$ 0	$ 0
Gross increases - tax positions of prior years	670	0
Gross UTB balance at end of fiscal year	$ 670	$ 0