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Inventories | 12 Months Ended
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Dec. 31, 2020
Inventories |
Inventories | Note 3. Inventories The components of inventory are summarized below (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31, | ​
​ |  | 2020 |  | 2019 |
Inventories: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Raw materials | ​ | $ | 24,738 | ​ | $ | 20,677 | ​
Work in process | ​ |  | 24,215 | ​ |  | 24,946 | ​
Finished goods | ​ |  | 2,562 | ​ |  | 3,529 | ​
​ | ​ | $ | 51,515 | ​ | $ | 49,152 | ​
​ As of December 31, 2020 and 2019, carrying values of inventories were net of inventory reserves of $17.7 million and $16.4 million, respectively, for excess and obsolete inventory and $162,000 and $91,000, respectively, for lower of cost or net realizable value reserves.

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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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