Note 8 - Accounts Receivable Reserves - Schedule of Accounts Receivable Reserves (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Balance	$ 100	$ 97
Additions charged to costs and expenses	177	77
Reductions	0	(74)
Balance	$ 277	$ 100