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REVENUE AND COST OF SALES (Details1) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Production costs $ 4,987,000 $ 0 $ 10,834,000 $ 0
Stand-by and ramp-up costs 0 554,000 0 800,000
Depreciation and depletion 481 463 940 926
Total cost $ 5,468,000 $ 1,017,000 $ 11,774,000 $ 1,726,000