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v3.21.2

RELATED PARTY TRANSACTIONS (Details) - USD ($) |  |  | 1 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 01, 2021 | Jun. 01, 2020 | Jun. 30, 2016 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2017
Related Party Transaction [Line Items] |  |  |  |  |  |
Lessor, Operating Lease, Annual Lease Expense | $ 15,000 | $ 12,000 |  |  |  |
Lessor, Operating Lease, Monthly Lease Payment | $ 1,250 | $ 1,000 |  |  |  |
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 |  |  |  | $ 230,000 | $ 130,000 |
Director | Leoncito Project, L.L.C. |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Testing Permit and Lease Option Agreement, Accrued Liability |  |  |  | $ 190,000 |  |
United Nuclear | Director |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Equity method, ownership percentage |  |  |  | 19.00% |  |

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