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Related parties (Details Narrative) - Lease Agreements 1 [Member] - BRL (R$)
R$ in Thousands
 12 Months Ended
Aug. 02, 2021
Oct. 30, 2019
Sep. 06, 2018
Apr. 25, 2018
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]              
Lease term     20 years   20 years    
Renewal term         20 years    
R V L Esteves Gestao Imobiliaria S A [Member]              
IfrsStatementLineItems [Line Items]              
Lease expenses R$ 40 R$ 12     R$ 23,434 R$ 20,394 R$ 15,336
U N I V A C O Patrimonial Ltda [Member]              
IfrsStatementLineItems [Line Items]              
Percentage of revenue   6.50%     6.50%    
Renewal term         20 years    
Lease expenses         R$ 3,582 3,409 3,210
I E S V A P Patrimonial Ltda [Member]              
IfrsStatementLineItems [Line Items]              
Lease term       20 years      
Percentage of revenue       7.50%      
Renewal term       20 years      
Lease expenses         R$ 5,170 R$ 4,920 R$ 4,560
Description of lease term       The lease agreement is for an amount equal to 7.5% of the monthly revenue of IESVAP until maturation.      
Instituto Tocantinense Presidente Antonio Carlos S A [Member] | R V L Esteves Gestao Imobiliaria S A [Member]              
IfrsStatementLineItems [Line Items]              
Percentage of revenue     7.50%        
Institutode Ensino Superior Presidente Trancredode Almeida Neves S A [Member] | R V L Esteves Gestao Imobiliaria S A [Member]              
IfrsStatementLineItems [Line Items]              
Description of lease term (i) up to June 2022, R$40; (ii) from July 2022 until December 2028, 6.5% of the monthly revenue of ITPAC Garanhuns during the prior semester, adjusted in accordance with the provisions of the lease agreement (i) up to June 2020, R$12 and (ii) from July 2020 until March 2024, 6.5% of the monthly revenue of IPTAN during the prior semester, adjusted in accordance with the provisions of the lease agreement.