Cash and cash equivalents (Policies) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Notes and other explanatory information [abstract] | |
| Cash and cash equivalents | Cash and cash equivalents include cash on hand, bank deposits, bank overdrafts, and other highly liquid short-term investments, with maturities and Management's intent for use within three months or less. |