Note 2 - Summary of significant accounting policies: Intangible assets, net (Details) |
Dec. 31, 2025 |
|---|---|
| Use Rights | |
| Finite-Lived Intangible Asset, Useful Life | 50 years |
| Computer Software, Intangible Asset | Minimum | |
| Finite-Lived Intangible Asset, Useful Life | 3 years |
| Computer Software, Intangible Asset | Maximum | |
| Finite-Lived Intangible Asset, Useful Life | 5 years |