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Inventory
 12 Months Ended
Dec. 31, 2020
Text Block [Abstract]  
Inventory
 
7.
INVENTORY
 
  
  
  
 
  
December 31,
2020 
 
  
December 31,
  2019 
 
 Heap leach ore (current and
non-current)
  
 
        
 
  
$
                268,703 
 
  
$
                158,598 
 
 Less:
Non-current
portion of heap leach ore
  
 
 
 
  
 
(130,888)
 
  
 
(141,578)
 
    
 Current portion of heap leach ore
  
   
  
 
137,815 
 
  
 
17,020 
 
 Stockpiles
  
   
  
 
13,514 
 
  
 
9,776 
 
 Work-in-process
  
   
  
 
14,988 
 
  
 
6,366 
 
 Supplies
  
   
  
 
37,473 
 
  
 
12,329 
 
 Finished goods
  
 
 
 
  
 
4,500 
 
  
 
771 
 
    
 Current inventory
  
 
 
 
  
$
208,290 
 
  
$
46,262 
 
Non-c
u
rrent
inventory relates to heap leach ore at Mesquite and Castle Mountain not expected to be recovered in the next year.