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v3.22.1

DEBT (Details) - USD ($) |  |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Mar. 02, 2022 | Jun. 25, 2020 | Aug. 10, 2018 | Jun. 30, 2020 | Mar. 31, 2022 | Dec. 31, 2021
LONG-TERM DEBT |  |  |  |  |  |  |  |  |  |  |  |
Sale of flow-through common stock |  |  |  |  |  |  | $ 14,400,000 |  |  |  |  |
Term Loan |  |  |  |  |  |  |  |  |  |  |  |
LONG-TERM DEBT |  |  |  |  |  |  |  |  |  |  |  |
Working capital covenant |  |  |  |  |  |  |  |  |  | $ 10,000,000.0 |  |
Term Loan | Chairman and Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |
LONG-TERM DEBT |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  | $ 50,000,000.0 |  |  | $ 50,000,000.0 |  | $ 50,000,000.0 |
Term of debt instrument |  |  |  |  |  |  |  |  | 3 years |  |  |
Stated interest rate (as a percent) |  |  |  |  |  |  |  |  | 9.75% |  |  |
Amended loan agreement |  |  |  |  |  |  |  |  |  |  |  |
LONG-TERM DEBT |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  | $ 50,000,000.0 |  | $ 50,000,000.0 |  |  | 50,000,000.0 |
Extension term for repayment of debt |  |  |  |  |  | 18 months |  | 2 years |  |  |  |
Term loan retirement period |  |  |  |  |  | 18 months |  | 11 months |  |  |  |
Principal repayments |  |  |  |  |  | $ 2,000,000.0 |  | $ 2,000,000.0 |  |  |  |
Final payment |  |  |  |  |  | 12,000,000.0 |  | $ 26,000,000.0 |  |  | 12,000,000.0 |
Working capital covenant | $ 10,000,000 | $ 7,000,000.0 | $ 5,000,000.0 | $ 10,000,000 | $ 7,000,000.0 | 5,000,000.0 |  |  |  |  | 10,000,000.0 | $ 2,500,000
Shares issued as bonus interest |  |  |  |  |  |  |  | 2,091,700 |  |  |  |
Sale of flow-through common stock |  |  |  |  |  |  |  | $ 1,875,000 |  |  | 500,000 |
Commercial Paper | Company Controlled by Mcewen |  |  |  |  |  |  |  |  |  |  |  |
LONG-TERM DEBT |  |  |  |  |  |  |  |  |  |  |  |
Due to Related Parties |  |  |  |  |  | $ 15,000,000.0 |  |  |  |  | $ 15,000,000.0 |
Related Party Transaction, Interest Rate |  |  |  |  |  | 8.00% |  |  |  |  | 8.00% |

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