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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventories consisted of the following:
 September 30, 2021December 31, 2020
 (thousands of dollars)
Raw material$1,928 $2,580 
Work in process187 138 
Finished products13,504 10,227 
Total inventories$15,619 $12,945