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REVENUE AND COST OF SALES (Tables)
 12 Months Ended
Dec. 31, 2020
Schedule of Revenue

 

 

 

2020

 

 

2019

 

 

2018

 

Concentrate sales

 

$

15,304

 

 

$

31,417

 

 

$

34,551

 

Provisional pricing adjustments

 

 

718

 

 

 

329

 

 

 

(435

)

 

 

$

16,022

 

 

$

31,746

 

 

$

34,116

 
Schedule of Cost of Sales

 

 

 

2020

 

 

2019

 

 

2018

 

Production costs

 

$

11,443

 

 

$

27,949

 

 

$

24,619

 

Stand-by costs

 

 

2,394

 

 

 

-

 

 

 

-

 

Inventory net realizable adjustment

 

 

-

 

 

 

387

 

 

 

-

 

Depreciation and depletion

 

 

1,995

 

 

 

3,680

 

 

 

3,231

 

 

 

$

15,832

 

 

$

32,016

 

 

$

27,850