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Inventories
12 Months Ended
Dec. 31, 2022
Inventory Disclosure [Abstract]  
Inventories Inventories
 
Inventories consist of the following (in thousands):
 December 31,
 20222021
Raw materials$5,351 $4,794 
Work in progress336 551 
Finished goods5,475 4,621 
Consumable supplies2,394 2,720 
Inventories$13,556 $12,686