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Inventories
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
 
Inventories consist of the following:
 December 31,
 20212020
Raw materials$4,794 $5,006 
Work in progress551 770 
Finished goods4,621 4,640 
Consumable supplies2,720 2,718 
Inventories$12,686 $13,134