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Note 4 - Inventories - Components of Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Raw materials $ 68,110 $ 47,978
Work-in-process 8,912 5,114
Finished goods 11,911 15,773
Supplies 2,296 2,164
Total inventories $ 91,229 $ 71,029