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Inventories (Tables)
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current Inventories consist of the following (in thousands):
 March 31, 2023December 31, 2022
Raw materials and consumable supplies$8,195 $7,745 
Work in progress and finished goods6,568 5,811 
Inventories$14,763 $13,556