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Inventories
12 Months Ended
Dec. 31, 2020
Inventory, Net [Abstract]  
Inventories INVENTORIES
Inventories consist of the following:
(In thousands)20202019
Finished goods$15,251 $18,217 
Work-in-process9,098 12,123 
Raw materials25,913 20,121 
Stores, supplies and other16,175 13,744 
Total$66,437 $64,205 
Inventories stated on the LIFO basis amounted to $14.4 million at December 31, 2020 and $12.6 million at December 31, 2019, which were below replacement costs by $12.1 million at December 31, 2020 and $8.6 million at December 31, 2019. Inventories stated on the weighted average cost basis was $33.6 million and $32.9 million at December 31, 2020 and 2019, respectively, while inventories stated on the first in, first out method amounted to $18.4 million and $18.7 million at December 31, 2020 and 2019, respective