XML 33 R13.htm IDEA: XBRL DOCUMENT v3.21.1
7. Asset Retirement Obligation and Accrued Reclamation Costs
12 Months Ended
Dec. 31, 2020
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligation and Accrued Reclamation Costs

Changes to the asset retirement obligation balance during 2020 and 2019 are as follows:

 

Asset Retirement Obligation      
       
   Balance December 31, 2018   $ 170,220  
   Accretion during 2019     6,148  
   Balance December 31, 2019     176,368  
   Accretion during 2019     7,851  
   Balance December 31, 2019   $ 184,219  

 

The Company’s total asset retirement obligation and accrued reclamation costs of $291,719 and $283,868, at December 31, 2020 and 2019, respectively, include reclamation obligations for the Idaho and Montana operations of $107,500.