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7. Asset Retirement Obligation and Accrued Reclamation Costs (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]    
Beginning balance $ 176,368 $ 170,220
Accretion during the year 7,851 6,148
Ending balance $ 184,219 $ 176,368