Note 3 - Reserve for Sales Returns and Allowance - Reserve for Sales Returns and Allowances (Details) - Allowance For Sales Returns 1 [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Balance at the beginning of year	$ 2,090	$ 2,636
Provision for returns and allowances	4,678	4,512
Actual returns and allowances paid to customers	(5,360)	(5,058)
Balance at the end of year	$ 1,408	$ 2,090