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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventories consisted of the following:
 March 31, 2022December 31, 2021
 (thousands of dollars)
Raw material$5,432 $2,348 
Work in process171 212 
Finished products14,752 18,574 
Total inventories$20,355 $21,134