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Share Option and Warrant Reserves (Tables)
 12 Months Ended
Dec. 31, 2020
Share Option And Warrant Reserves  
Disclosure of share-based payments
  Years ended December 31
      2020 2019
Recognized in net loss from continuing operations and included in:        
Exploration and evaluation costs     $ 528 $ 335
Fees, salaries and other employee benefits     2,002 2,212
      $ 2,530 $ 2,547
Recognized in net loss from discontinued operations     239 853
Total share-based compensation expense     $ 2,769 $ 3,400
Disclosure of assumptions
    Years ended December 31
      2020 2019
Risk-free interest rate     0.36% 1.59%
Expected dividend yield     Nil Nil
Share price volatility     68% 62%
Expected forfeiture rate     0% 0%
Expected life in years     4.90 4.33
Disclosure of share option activity
   

Number of

share options

    

Weighted

average

exercise price

($/option)(1)

  
Outstanding, December 31, 2018     4,192,253     $ 2.74  
Granted     2,226,184       2.83  
Exercised     (625,798 )     0.92  
Expired     (155,394 )     3.45  
Forfeited     (34,626 )     2.80  
Outstanding, December 31, 2019     5,602,619     $ 2.96  
Granted     5,857,459       2.42  
Exercised     (3,228,182 )     2.42  
Expired     (20,272 )     2.90  
Forfeited     (70,620 )     2.61  
Outstanding, December 31, 2020     8,141,004     $ 2.67  

 

(1) The exercise price of issued share options prior to October 9, 2020 were adjusted downwards by $0.95, pursuant to the Transaction, reflecting the fair value of the Peruvian projects allocated to the Spincos. The above weighted average exercise prices were retrospectively adjusted to reflect this change.

 
Disclosure of share options outstanding and exercisable
         Options outstanding     Options exercisable  
 

Exercise

price ($/option)

     Number of shares     Weighted average exercise price ($/option)     Weighted average remaining life (years)     Number of shares     Weighted average exercise price ($/option)     Weighted average remaining life (years)  
  $ 0.56 – $1.95       1,596,218       1.68       3.91       1,418,418       1.49       3.74  
  $ 2.05 – $5.31       6,308,503       2.68       3.46       3,334,753       2.90       2.26  
  $ 7.54 – $9.86       207,113       8.60       1.06       207,113       8.60       1.06  
  $ 12.94       29,170       12.94       0.32       29,170       12.94       0.32  
            8,141,004       2.67       3.48       4,989,454       2.80       2.62  
Disclosure of warrant activity
   

Warrants

outstanding

    

Exercise

price ($/share)

  
Outstanding at December 31, 2018     -     $ -  
Issued     337,813       2.96  
Outstanding at December 31, 2019     337,813     $ 2.96  
Issued     1,297,591       1.33  
Exercised     (8,664 )     1.46  
Outstanding at December 31, 2020     1,626,740     $ 1.66  
Disclosure of warrants outstanding and exercisable
Expiry date  

Warrants

outstanding

    

Exercise

price ($/share)

  
May 8, 2021     541,744       1.46  
October 24, 2021     334,993       1.37  
March 6, 2022     189,613       1.11  
March 9, 2022     222,577       1.11  
September 12, 2022     337,813       2.96  
Total     1,626,740       1.66