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Zinc Zero Cost Collar (Tables) | 12 Months Ended
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Dec. 31, 2022
Zinc Zero Cost Collar |
Schedule of realized and unrealized losses related to Zinc Zero Cost Collar | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the year ended December 31,
​ | ​ | 2022 | ​ | 2021
​ | ​ | (in thousands)
Realized loss on zinc zero cost collar | ​ | $ | 2,014 | ​ | $ | 1,156
Unrealized (gain) loss on zinc zero cost collar (1) | ​ | ​ | (1,844) | ​ | ​ | 1,844
Total | ​ | $ | 170 | ​ | $ | 3,000
​
| (1) | Gains and losses due to changes in fair value are non-cash in nature until such time that they are realized through cash transactions.

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