Annual report pursuant to Section 13 and 15(d)

Inventories (Details)

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Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Inventory, Net    
Finished products and work in process $ 46,894 $ 48,500
Raw materials 6,919 4,289
Inventory, Net 53,813 52,789
Valued at lower of cost or market:    
LIFO basis 33,330 31,072
Valued at Lower of Cost and Net Realizable Value [Abstract]    
FIFO or average cost basis 20,483 21,717
Inventory, Net $ 53,813 $ 52,789