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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventories Inventories consisted of the following:
December 31,
 20212020
Raw material$293 $428 
Work in progress3,082 10,465 
Finished goods7,269 4,400 
Spare parts4,380 3,843 
Total inventory$15,024 $19,136