Financial investments (Details Text) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Investment [Line Items] | ||
| Financial investments | R$ 590,014 | R$ 487,924 |
| Financial assets, average return percentage. | 100.00% | |
| Financial Assets Interest Rate | 14.90% | 12.15% |
| Brazilian Treasury Bonds [Member] | ||
| Investment [Line Items] | ||
| Financial assets, average return percentage. | 100.00% |