XML 56 R45.htm IDEA: XBRL DOCUMENT v3.21.1
Asset Retirement Obligations - Schedule of Asset Retirement Obligations (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Asset Retirement Obligation Disclosure [Abstract]      
Asset retirement obligations at beginning of period $ 4,010,624 $ 3,633,427 $ 3,633,427
Accretion expense 100,266 $ 90,836 377,197
Change in estimate  
Asset retirement obligations at end of period $ 4,110,890   $ 4,010,624