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PLANT, EQUIPMENT AND MINING PROPERTIES (Tables)
12 Months Ended
Dec. 31, 2018
Plant Equipment And Mining Properties Tables Abstract  
Schedule of Plant, Equipment and Mining Properties

   

Mining

properties

    Office equipment, furniture, and fixtures     Computer equipment     Mine machinery and transportation equipment     Mill machinery and processing equipment     Buildings     Total  
    $     $     $     $     $     $     $  
COST                                          
Balance at January 1, 2017     10,990       83       253       14,927       7,638       2,645       36,536  
Additions     1,370       49       27       1,271       2,137       2,949       7,803  
Effect of movements in exchange rates     122       1       3       179       91       31       427  
Balance at December 31, 2017     12,482       133       283       16,377       9,866       5,625       44,766  
Additions     588       17       77       990       7,901       1,089       10,662  
Transfers     -       -       -       -       (45 )     45       -  
Disposals     -       -       -       -       (33 )     -       (33 )
Effect of movements in exchange rates     (108 )     (1     (2 )     (110 )     (86 )     (49 )     (356 )
Balance at December 31, 2018     12,962       149       358       17,257       17,603       6,710       55,039  
                                                         
ACCUMULATED DEPLETION AND DEPRECIATION                                                        
Balance at January 1, 2017     2,748       36       116       4,206       846       508       8,460  
Additions     1,817       12       27       1,827       283       87       4,053  
Effect of movements in exchange rates     27       -       1       51       10       6       95  
Balance at December 31, 2017     4,592       48       144       6,084       1,139       601       12,608  
Additions     1,549       17       32       799       1,287       112       3,796  
Effect of movements in exchange rates     (39 )     -       (1 )     (53 )     (10 )     (5 )     (108 )
Balance at December 31, 2018     6,102       65       175       6,830       2,416       708       16,296  
                                                         
NET BOOK VALUE                                                        
At December 31, 2018     6,860       84       183       10,427       15,187       6,002       38,743  
At December 31, 2017     7,890       85       139       10,293       8,727       5,024       32,158  
At January 1, 2017     8,242       47       137       10,721       6,792       2,137       28,076