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v3.26.1

Interest income (Tables) | 12 Months Ended
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Dec. 31, 2025
Notes and other explanatory information [abstract] |
Schedule of Interest Income | Schedule of Interest Income
|  | Year ended December 31, 2025 |  |  | Year ended December 31, 2024 |  |  | Year ended December 31, 2023 |
Interest income from |  |  |  |  |  |  |  |  |
Bank deposits |  | $ | 14,535 |  |  | $ | 22,580 |  |  | $ | 19,582 |
Guarantee deposit |  |  | 18,692 |  |  |  | 23,862 |  |  |  | - |
Long-term receivables (including current portion) |  |  | 112,726 |  |  |  | 218,168 |  |  |  | 316,793 |
Total Interest Income |  | $ | 145,953 |  |  | $ | 264,610 |  |  | $ | 336,375 |

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