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RECEIVABLES (Tables)
12 Months Ended
Dec. 31, 2016
Receivables [Abstract]  
Summary of Trade, and Notes Receivables
 
December 31, 2016
 
December 31, 2015
Current
 
 
 
 Trade receivables - mineral concentrate sales
$

 
$
1,868

 Trade receivables - other
364

 
749

 
$
364

 
$
2,617

Non-current
 
 
 
 Notes receivable and other
$
1,146

 
$
1,096

 
$
1,146

 
$
1,096