XML 179 R161.htm IDEA: XBRL DOCUMENT v3.21.1
21 Loans and Financing (Details Narrative) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about borrowings [line items]    
Description of securites term The term of these securities ranges from 4 to 51 months from the end of the reporting period.  
National Treasury Department (STN - Secretaria do Tesouro Nacional) [member]    
Disclosure of detailed information about borrowings [line items]    
Description of securites term 2024.04.11  
National Treasury Department (STN - Secretaria do Tesouro Nacional) [member] | Par Bonds [member] | Collateral [member]    
Disclosure of detailed information about borrowings [line items]    
Cash deposits R$ 78,764 R$ 57,968
National Treasury Department (STN - Secretaria do Tesouro Nacional) [member] | Discount Bonds [member] | Collateral [member]    
Disclosure of detailed information about borrowings [line items]    
Cash deposits R$ 54,757 R$ 40,465