Note 9 - Debt - Due Under Factoring Agreement (Details) - Line of Credit [Member] - Factoring Agreement [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Average borrowings outstanding (in thousands)	$ 2,303	$ 3,179
Fees paid, as a percentage of average outstanding borrowings	7.30%	5.80%
Interest paid, as a percentage of average outstanding borrowings	9.50%	7.00%