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Mineral Properties | 6 Months Ended
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Jun. 30, 2021
Mineral Properties |
Mineral Properties | 4. Mineral Properties ​ Mt Todd, Northern Territory, Australia ​ The capitalized mineral property values are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | At June 30, 2021 |  | At December 31, 2020 | ​
Mt Todd, Australia | ​ | $ | 2,146 | ​ | $ | 2,146 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ Vista acquired Mt Todd in March 2006. Transaction-related costs of $2,146 were capitalized as mineral properties. This amount included the purchase price and related transaction costs. Since 2006, the Company has systematically advanced the Project through exploration, metallurgical testing, engineering, and environmental/operational permitting activities conducted in addition to ongoing site management activities. Costs associated with these activities were charged to expense as incurred. See Note 8 for other commitments to the Jawoyn Association Aboriginal Corporation (the “Jawoyn Association”). ​ Guadalupe de Los Reyes, Sinaloa, Mexico ​ In July 2020, the Company completed the sale of the Guadalupe de los Reyes gold and silver project in Sinaloa, Mexico (“Los Reyes”) to Prime Mining Corporation (“Prime Mining”). Under the terms of sale, Prime Mining was required to make additional payments to Vista of $2,100 in lieu of Vista being granted certain royalty and back-in rights. Prime Mining paid $1,100 in January 2021 and $1,000 in June 2021. Having received these payments as scheduled, Vista has no remaining right to be granted the royalties and back-in right, and Vista recognized a gain on disposal of mineral property interests of $2,100 during the three and six months ended June 30, 2021. ​ Awak Mas, Sulawesi, Indonesia ​ Vista holds a net smelter return royalty (“NSR”) on the Awak Mas project in Indonesia. During 2019, Vista and the holder of Awak Mas amended the original royalty agreement to allow the holder or a nominated party to make a $2,400 payment to Vista by April 30, 2020 to cancel a 1% NSR on the first 1,250,000 ounces produced at Awak Mas and a 1.25% NSR on the next 1,250,000 ounces produced. On May 5, 2020, the Company received $2,400 to cancel the related 1% NSR and 1.25% NSR. The gain recognized upon receipt of this payment was $2,568, which included the $2,400 payment plus $168 of previously deferred option gain. Thereafter, the holder of Awak Mas or a nominated party had the right to cancel the remaining 1% NSR and 1.25% NSR for an additional payment of $2,500 by April 30, 2021. Vista and the holder of Awak Mas agreed in April 2021 to extend the payment date for the remaining $2,500 to not later than January 31, 2022 upon payment of certain extension fees by the holder or a nominated party. Vista received $180 during the three months ended June 30, 2021 for extension fees. The gain associated with these fees is deferred until the final royalty payment is received or the extension expires and will be recognized as income at that time. If the holder does not make the extension payments when due or the final $2,500 payment by not later than January 31, 2022, Vista will retain the remaining royalty interests.

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