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Inventories (Tables)
 12 Months Ended
Dec. 31, 2019
Inventories [abstract]  
Schedule of Inventories

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

December 31,

 

    
2019

    

2018

Concentrate stockpiles

 

$

2,640

 

$

1,671

Ore stockpiles

 

 

3,730

 

 

3,166

Materials and supplies

 

 

8,101

 

 

9,549

Inventories

 

$

14,471

 

$

14,386