XML 97 R59.htm IDEA: XBRL DOCUMENT v3.22.1
Significant accounting policies (Details Narrative)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
IfrsStatementLineItems [Line Items]      
Lease term 1 year    
Tax rate 34.00% 34.00% 34.00%
Program of social integration ("pis") [member] | Teaching Activities [Member]      
IfrsStatementLineItems [Line Items]      
Tax rate 0.65%    
Program of social integration ("pis") [member] | Non-teaching activities [member]      
IfrsStatementLineItems [Line Items]      
Tax rate 1.65%    
Contribution for the financing of social security ("COFINS") [member] | Teaching Activities [Member]      
IfrsStatementLineItems [Line Items]      
Tax rate 3.00%    
Contribution for the financing of social security ("COFINS") [member] | Non-teaching activities [member]      
IfrsStatementLineItems [Line Items]      
Tax rate 7.60%