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INVENTORIES
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Inventories
INVENTORIES
 
March 31, 2020
 
December 31, 2019
 Concentrates and work-in-progress(1)
$
22,399

 
$
20,893

 Inventory of ore in stockpiles
241

 
241

 Raw materials and consumables
2,870

 
2,823

 
$
25,510

 
$
23,957

Inventories - by duration


 


   Current
$
24,361

 
$
22,808

   Long term - raw materials and consumables
1,149

 
1,149


$
25,510

 
$
23,957

(1) For the three months ended March 31, 2020, the Company recorded an impairment loss of $1.08 million in the statement of operations related to concentrates and work in progress inventories (March 31, 2019 - $1.18 million).