Note 3 - Inventory and Other Deferred Costs - Summary of Inventories and Other Deferred Costs (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Raw materials	$ 18,333	$ 14,929
Work-in-process	2,869	3,662
Finished products	31,131	26,688
Other deferred costs	5,747	4,992
Total inventory and other deferred costs	$ 58,080	$ 50,271