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OTHER INCOME (EXPENSE) (Tables) | 6 Months Ended
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Jun. 30, 2022
Other Income and Expenses [Abstract] |
Schedule of Other Income (Expense) | The following table includes the components of Other income (expense):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Interest income | $ | 2,234 |  |  | $ | 495 |  |  | $ | 3,799 |  |  | $ | 965 |
Gain (loss) on marketable securities |  | (2,876) |  |  |  | (1,362) |  |  |  | (3,799) |  |  |  | (1,947) |
Gain (loss) on sale of mineral properties, plant, and equipment |  | (757) |  |  |  | 1,636 |  |  |  | (1,341) |  |  |  | 1,614 |
Other |  | (996) |  |  |  | (951) |  |  |  | (1,421) |  |  |  | (2,425) |
Total | $ | (2,395) |  |  | $ | (182) |  |  | $ | (2,762) |  |  | $ | (1,793) |

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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