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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% |  |

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