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MINERAL PROPERTIES AND PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) $ / shares in Units, $ in Thousands |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
May 03, 2023 USD ($) | Feb. 14, 2023 USD ($) subsidiary $ / shares | Feb. 10, 2023 USD ($) purchaseAgreement | May 19, 2022 USD ($) mi mineralConcession a | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Depreciation, Depletion and Amortization |  |  |  |  | $ 3,127 | $ 2,751 | $ 3,269
Depreciation |  |  |  |  | 2,990 | 2,750 | 3,270
Number Of Purchase Agreements | purchaseAgreement |  |  | 2 |  |  |  |
Purchase Agreements, Number Of Mineral Concessions Acquired | mineralConcession |  |  |  | 17 |  |  |
Purchase Agreement, Acres To Purchase | a |  |  |  | 37,300 |  |  |
Purchase Agreement, Miles To Purchase | mi |  |  |  | 58.3 |  |  |
Purchase Agreement, Purchase Price |  |  |  | $ 27,500 |  |  |
Purchase Agreement, Deposit Payment |  |  |  | $ 5,900 |  |  |
Purchase Agreement, Payment Due At Closing |  |  | $ 21,600 |  |  |  |
Purchase Agreement, Direct Deal Costs |  |  |  |  | 1,630 |  |
Gain On Disposal Of Non-Core Assets |  |  |  |  | 74 | 119,257 | 366
Restricted Cash And Cash Equivalents, Held-For-Sale |  |  |  |  | 0 | 0 | 3,590
Disposal Group Not Discontinued Operation Gain Loss On Disposal Statement Of Income Extensible List Not Disclosed Flag | gain |  |  |  |  |  |
Release Of Restricted Cash |  |  |  |  | 0 | 3,590 | 0
Alta Mesa Divestiture |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Proceeds from Sale of Productive Assets | $ 3,100 |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration |  | $ 120,000 |  |  |  |  |
Noncash or Part Noncash Divestiture, Amount of Consideration Received |  | $ 60,000 |  |  |  |  |
Convertible Note Receivable, Term |  | 2 years |  |  |  |  |
Convertible Notes Receivable, Conversion Price Per Share | $ / shares |  | $ 2.9103 |  |  |  |  |
Convertible Notes Receivable, Premium |  | 20.00% |  |  |  |  |
Gain On Disposal Of Non-Core Assets |  | $ 116,500 |  |  |  |  |
Disposal Group, Cash To Be Received |  | 119,460 |  |  |  |  |
Proceeds from Divestiture of Interest in Consolidated Subsidiaries |  | 60,000 |  |  |  |  |
Notes Receivable, Amortized cost |  | 59,460 |  |  |  |  |
Disposal Group, Including Discontinued Operation, Assets |  | 3,400 |  |  |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal | 2,750 |  |  |  |  |  |
Payments to Acquire Other Property, Plant, and Equipment | 500 |  |  |  |  |  |
Property, plant and equipment, held-for-sale | $ 350 |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Property, Plant And Equipment, Usage Period | 20 years |  |  |  |  |  |
Convertible Notes Receivable, Conversion Limitation Per Transaction |  | $ 10,000 |  |  |  |  |
Number of subsidiaries sold | subsidiary |  | 3 |  |  |  |  |
Disposal Group, Cash Due Prior To Closing |  | $ 6,000 |  |  |  |  |
Disposal Group, Cash Due At Closing |  | $ 54,000 |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 8.00% |  |  |  |  |
Release Of Restricted Cash |  |  |  |  |  |  | 3,590
Land |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Depreciation |  |  |  |  | 1,650 | 100 | $ 240
Mineral Properties [Domain] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Depreciation |  |  |  |  | $ 230 | $ 210 |

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