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Significant Accounting Policies (Details Narrative) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Significant Accounting Policies      
Percentage of construction margin adopted for the transmission activity 1.65% 1.65% 1.65%
Applicable tax rate 15.00%    
Applicable tax rate with surtax 10.00%    
Minimum amount for income tax R$ 240    
Percentage for social contribution 9.00%    
Percentage of limit of taxable profit 30.00%