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Bonds and financing - Parentheticals (Details 2) - BRL (R$)
R$ in Thousands
 12 Months Ended
Sep. 28, 2022
Aug. 06, 2021
May 31, 2021
Mar. 15, 2021
Dec. 31, 2022
Dec. 31, 2021
Bonds and financing            
Borrowings, interest rate basis         CDI  
Payment of borrowings principal         R$ 255,644 [1] R$ 477,741 [2]
Somos Sistemas De Ensino S.A. [Member]            
Bonds and financing            
Issued simple debentures, not convertible R$ 250,000          
Non-current Bonds with related parties [member]            
Bonds and financing            
Payment of borrowings principal         0 [1] 0 [2]
Non-current Bonds with related parties [member] | Somos Sistemas De Ensino S.A. [Member]            
Bonds and financing            
Borrowings, interest rate basis 100% of the CDI          
Borrowings, adjustment to interest rate basis 2.40%          
Issued simple debentures, not convertible R$ 250,000          
Borrowings average maturity 37 months          
Current Bonds with related parties [member]            
Bonds and financing            
Payment of borrowings principal         254,885 [1] 477,564 [2]
Current Bonds with related parties [member] | Bonds, 5th Issuance, 1st series [member]            
Bonds and financing            
Payment of borrowings principal       R$ 100,000    
Payment of borrowings interest       1,488    
Payment of borrowings principal and interest       101,488    
Current Bonds with related parties [member] | Bonds, 5th Issuance, 2nd series [member]            
Bonds and financing            
Payment of borrowings interest   R$ 2,029   1,451    
Current Bonds with related parties [member] | Bonds, 6th Issuance, 2nd series [member]            
Bonds and financing            
Payment of borrowings interest   4,758   3,613    
Current Bonds with related parties [member] | Bonds, 7th Issuance, single series [member]            
Bonds and financing            
Payment of borrowings principal   189,564 R$ 188,000      
Payment of borrowings interest   R$ 5,871   R$ 5,663    
Current Financing [member]            
Bonds and financing            
Payment of borrowings principal         759 [1] 177 [2]
Current Financing [member] | Banco de Desenvolvimento de Minas Gerais SA [member]            
Bonds and financing            
Periodic payment of borrowings by monthly, principal           15
Periodic payment of borrowings by monthly, interest           4
Payment of borrowings principal           177
Payment of borrowings interest           49
Non-current Bonds [Member]            
Bonds and financing            
Payment of borrowings principal         R$ 0 [1] R$ 0 [2]
Non-current Bonds [Member] | Somos Sistemas De Ensino S.A. [Member]            
Bonds and financing            
Borrowings, interest rate basis   100% of DI Interest Deposit rate (CDI)        
Borrowings, adjustment to interest rate basis   2.30%        
Issued simple debentures, not convertible   R$ 500,000        
Borrowings average maturity   35 months        
[1] We present below the composition of interest and principal payments considering the issues made:
[2] On March 15, 2021, the Company, substantially settled bonds with related parties amounting to R$ 100,000 and R$ 1,488, in principal and interest, respectively as follows: 5th Issuance, 1st series – R$ 101,488. In addition, the Company settled only interest on the following bonds: 5th Issuance, 2nd series – R$ 1,451, 6th Issuance, 2nd series – R$ 3,613 and 7th Issuance, single series – R$ 5,663. This measure is part of a commitment with shareholders as a result of the IPO. On May 31, 2021, the Company partially settled bonds with related parties amounting to R$ 188,000, of principal of the 7th issuance single series. On August 6, 2021, the Company settled the remaining 7th issuance with related parties in the amounts of R$189,564 and R$5,871, as principal and interest. In addition, the Company settled only interest on the following bonds: 5th Issuance, 2nd series – R$ 2,029 and 6th Issuance, 2nd series – R$ 4,758. Regarding the financing with Banco de Desenvolvimento de Minas Gerais SA - BDMG, the Company pays monthly the amount of R$ 15 and R$ 4, respectively, of principal and interest, totaling on December 31, 2021 an amount of R$177 and R$49, respectively, of principal and interest.