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Basis of preparation of condensed consolidated interim financial statements (Tables)
 6 Months Ended
Jun. 30, 2024
Notes and other explanatory information [abstract]  
Schedule of foreign exchange rates
                       
                    Average rate
    Closing rate   Three-month period ended June 30,   Six-month period ended June 30,
    June 30, 2024   December 31, 2023   2024   2023   2024   2023
US Dollar ("US$")   5.5589   4.8413   5.2129   4.9485   5.0843   5.0744
Canadian dollar ("CAD")   4.0620   3.6522   3.8107   3.6860   3.7426   3.7654
Euro ("EUR")   5.9547   5.3516   5.6132   5.3867   5.4969   5.4831