Note 1 - Summary of Significant Accounting Policies - Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Raw Materials	$ 20,551	$ 21,673
Work in Process	1,220	1,238
Finished Goods	828	671
Reserves	(1,132)	(1,144)
Total	$ 21,467	$ 22,438	[1]

[1] The balance sheet at December 31, 2022 has been derived from the audited financial statements at that date