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Note 2 - Inventories - Components of Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Raw materials $ 53,631 $ 54,024
Work-in-process 1,225 1,008
Finished goods 23,283 22,204
Supplies 2,545 2,534
Total inventories $ 80,684 $ 79,770