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REVENUE AND COST OF SALES (Details 1) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
REVENUE AND COST OF SALES        
Production costs $ 10,531 $ 8,910 $ 17,971 $ 18,143
Write down of equipment and materials and supplies inventory 164 384 164 384
Depreciation and depletion 886 796 1,720 1,617
Total cost $ 11,581 $ 10,090 $ 19,855 $ 20,144