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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2020
Inventories |
Schedule of Utility Inventory | Inventories consist of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
​ | ​ | 2020 | ​ | 2019
Raw materials | ​ | $ | 7,544 | ​ | $ | 357
Work-in-process | ​ | ​ | 227 | ​ | ​ | —
Finished goods | ​ |  | 2,764 | ​ |  | 117
​ | ​ | $ | 10,535 | ​ | $ | 474

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- Definition Tabular disclosure of all information related to inventories for utilities. + References No definition available. + Details
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