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MARKETABLE EQUITY SECURITIES (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Marketable Securities |  |  |
Carrying value of marketable securities | $ 1,172 |  | $ 373
Change in fair value of marketable securities | $ 799 | $ 613 | $ (1,503)
TriStar |  |  |
Marketable Securities |  |  |
Stock that can be purchased by warrants (in shares) | 19,640,000 |  |
Goldon Resources Ltd |  |  |
Marketable Securities |  |  |
Investment shares owned (in shares) | 250,000 |  |
Mountain Boy Minerals Ltd |  |  |
Marketable Securities |  |  |
Investment shares owned (in shares) | 1,242,500 |  |

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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
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