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Other Investments | 12 Months Ended
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Dec. 31, 2018
Other Investments |
Other Investments | 3. Other Investments Short-term investments As of December 31, 2018 and 2017, the amortized cost basis of our short-term investments was $6,997 and $15,144, respectively. The amortized cost basis approximates fair value at December 31, 2018 and 2017. Short-term investments at December 31, 2018 and 2017 are comprised of U.S. Government treasury bills and/or notes, all of which have maturity dates greater than 90 days but less than one year. Other investments - Midas Gold Shares Upon initial recognition of its investment in the Midas Gold Shares, Vista elected to apply the fair value option, and as such, the investment is recorded at fair value in the Consolidated Balance Sheets. Subsequent changes in fair value are recorded in the Consolidated Statements of Income/(Loss) and Comprehensive Income/(Loss) in the period in which they occur. The following table summarizes our investment in Midas Gold Shares as at December 31, 2018 and 2017.
|  | December 31, 2018 |  | December 31, 2017 |
Fair value at beginning of period |  | $ | 3,746 |  | $ | 4,994 |
Gain/(loss) during the period |  |  | 1,716 |  |  | (1,248) |
Fair value at end of period |  | $ | 5,462 |  | $ | 3,746 |
Midas Gold Shares held at the end of the period |  |  | 7,802,615 |  |  | 7,802,615 |

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