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Basis of preparation (Details Narrative)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Notes and other explanatory information [abstract]          
Inflation rate 117.80% 211.40% 94.80% 50.90% 36.10%