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RELATED PARTY TRANSACTIONS (Details) - USD ($)
1 Months Ended 3 Months Ended
Jun. 30, 2016
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2017
Related Party Transaction [Line Items]        
Royalty percentage of minerals recovered sold under minimum price threshold 3.125%      
Mineral price per pound, low range       $ 65.00
Royalty percentage of minerals recovered sold between price thresholds 6.25%      
Mineral price per pound, upper range       $ 95.00
Royalty percentage of minerals recovered sold above maximum price threshold 7.50%      
Director        
Related Party Transaction [Line Items]        
Equity method, ownership percentage   81.00%    
Proceeds from Contributed Capital   $ 0 $ 130,000  
Director | Leoncito Project, L.L.C.        
Related Party Transaction [Line Items]        
Testing Permit and Lease Option Agreement, Accrued Liability   $ 70,000.00    
United Nuclear | Director        
Related Party Transaction [Line Items]        
Equity method, ownership percentage   19.00%