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INVENTORIES | 9 Months Ended
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Sep. 30, 2020
INVENTORIES |
INVENTORIES | 8. INVENTORIES Inventories consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, |  | December 31,
(in thousands) | ​ | 2020 | ​ | 2019
Raw materials and supplies | ​ | $ | 25,478 | ​ | $ | 24,993
Work in process | ​ |  | 10,734 | ​ |  | 7,731
Finished goods | ​ |  | 6,678 | ​ |  | 8,829
Total inventories | ​ | $ | 42,890 | ​ | $ | 41,553
​

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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