XML 29 R11.htm IDEA: XBRL DOCUMENT v3.20.2
INVENTORIES
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
 September 30, 2020December 31, 2019
 Concentrates and work-in-progress(1)
$25,556 $20,893 
 Inventory of ore in stockpiles241 241 
 Raw materials and consumables2,772 2,823 
 $28,569 $23,957 
Inventories - by duration
   Current$27,420 $22,808 
   Long term - raw materials and consumables1,149 1,149 
$28,569 $23,957 
(1) For the three and nine months ended September 30, 2020, the Company recorded an impairment loss of $0.14 million and $1.64 million in the statement of operations related to concentrates and work in progress inventories (September 30, 2019 - $2.33 million and $8.41 million).