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Note 14 - Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2021
Statement Line Items [Line Items]  
Disclosure of fair value losses on derivative assets [text block]
      

2021

  

2020

  

2019

 
                 

Fair value losses on derivative financial assets

  14.1             

Gold ETF

      105   164    

Gold hedge

         102   601 
       105   266   601 
                 

Fair value losses on derivative financial liabilities

  14.2             

Gold loan

      114       

Call option

      21       
       135       
                 

Fair value losses on derivative financial instruments

      240   266   601 
Disclosure of derivative financial assets [text block]
 

2021

2020

     

Derivatives assets:

    

Gold exchange-traded fund ("Gold ETF")

  1,184

Gold hedge

  
   1,184
Disclosure of derivative financial liabilities [text block]
  

2021

  

2020

  

2019

 
             

Gold loan – increase in liability

  114       

Call option – increase in liability

  21       
   135       
  

2021

  

2020

 
         

Derivative liabilities:

        

Gold loan

  2,866    

Call option

  229    
   3,095    
Allocation of proceeds received for derivative financial liabilities [text block]

December 13, 2021

    

Gross proceeds

  3,000 

Transaction cost

  (40)

Net proceeds received

  2,960 

Fair value of Call options

  208 

Fair value of Gold loan

  2,752 
     

December 31, 2021

    

Fair value of Call options

  229 

Fair value of Gold loan

  2,866