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MARKETABLE EQUITY SECURITIES (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Marketable Securities          
Increase (decrease) fair value of equity securities $ 356 $ 176 $ (1,221) $ 4,035  
Investment value $ 700   $ 700   $ 1,700
TriStar          
Marketable Securities          
Stock that can be purchased by warrants (in shares) 19,640,000   19,640,000    
Goldon Resources Ltd          
Marketable Securities          
Investment shares owned (in shares) 250,000   250,000    
Mountain Boy Minerals Ltd          
Marketable Securities          
Investment shares owned (in shares) 1,242,500   1,242,500