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19 Financial assets at fair value through profit or loss (Tables)
 12 Months Ended
Dec. 31, 2020
Financial assets at fair value through profit or loss [abstract]  
Schedule of financial assets at fair value through profit or loss
     12.31.20     12.31.19 
         
Current        
Government bonds    2,222   -
Money market funds    -    3,798
Total current     2,222    3,798