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10-Q LONG-TERM RECLAMATION LIABILITY (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
Addition associated with the Lucerne mine 942,168 0  
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