LONG-TERM RECLAMATION ASSET (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] | |||
| Long-term reclamation liability — beginning of period | $ 5,445,672 | $ 6,054,919 | $ 6,034,208 |
| Reduction of obligation due to extension of time | (926,434) | 0 | |
| Accretion of reclamation liability | 82,316 | 317,187 | 20,711 |
| Long-term reclamation liability — end of period | $ 6,470,156 | $ 5,445,672 | $ 6,054,919 |