Note 12 - Income Taxes - Unrecognized Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Beginning balance	$ 335	$ 141
Gross increases for tax positions related to current periods	328	194
Gross decreases related to 382 limitations	52	0
Ending balance	$ 715	$ 335