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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2017
Text block1 [abstract]  
Summary of Goodwill
                     2017                      2016       
     $      $       

Cost

         

Balance at January 1,

      -        50,276     

Acquired during the year

      92,591        -     

Disposal due to sale

      -        (50,276)     

Balance at December 31,

      92,591        -     
Summary of Key Assumptions Used for Assessing the Recoverable Amount of Goodwill

The key assumptions used for assessing the recoverable amount of goodwill in Integra are as follows:

 

Gold price ($/oz)

      $1,300     

Silver price ($/oz)

      $16 - $18     

Discount rate

      7%