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INVENTORY | 3 Months Ended
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Mar. 31, 2021
INVENTORY |
INVENTORY | NOTE E — INVENTORY Following are the major classes of inventory as of March 31, 2021 and December 31, 2020 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2021 |  | 2020
USM | ​ | $ | 62,877 | ​ | $ | 63,277
Whole Assets | ​ | ​ | 79,679 | ​ | ​ | 56,767
Work in Process | ​ | ​ | 22,686 | ​ | ​ | 20,611
​ | ​ | ​ | 165,242 | ​ | ​ | 140,655
Less Short Term | ​ |  | (99,299) | ​ |  | (85,192)
Long Term | ​ | $ | 65,943 | ​ | $ | 55,463
​ The Company evaluated the inventory’s net realizable value as of March 31, 2021 and 2020 and determined no adjustment was required. ​ The Company recorded inventory scrap loss reserves of $0.1 million and $0.4 million for the three months ended March 31, 2021 and 2020, respectively, each of which was included in cost of products in the accompanying condensed consolidated statements of operations.

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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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