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Inventories (Tables)
 12 Months Ended
Dec. 31, 2018
Disclosure Of Inventories [Abstract]  
Summary of Inventories

 

Years ended December 31,

 

 

 

 

2018

 

 

2017

 

Stockpile

 

$

 

688

 

$

 

-

 

Ore in process

 

 

 

61,612

 

 

 

16,764

 

Finished metal inventory

 

 

 

4,883

 

 

 

383

 

Supplies

 

 

 

4,196

 

 

 

4,837

 

 

 

 

 

71,379

 

 

 

21,984

 

Less: non-current ore in process

 

 

 

7,081

 

 

 

-

 

Current portion

 

$

 

64,298

 

$

 

21,984