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Inventories (Tables)
3 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current
Inventories consist of the following (in thousands):
 March 31, 2024December 31, 2023
Raw materials$5,974 $6,099 
Work in progress1,003 839 
Finished goods5,495 5,740 
Consumable supplies2,607 2,605 
Inventories$15,079 $15,283