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Income taxes (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income tax rate | 10.00% |  |
Net income | $ 734,000 | $ 1,828,000 | $ 369,000
Aggregate undistributed earnings | $ 600,000 | $ 600,000 | $ 600,000
Hong Kong |  |  |
Income tax rate | 16.50% | 8.25% | 16.50%
Net income | $ 256,000 | $ 256,000 | $ 256,000
Shanghai Euro Tech Limited |  |  |
Income tax rate | 25.00% | 25.00% | 25.00%
Yixing Pact Environmental Technology Co. Ltd. |  |  |
Income tax rate | 25.00% | 25.00% | 25.00%
Net income | $ 1,235,000 | $ 1,330,000 | $ 1,509,000
Euro Tech Trading (Shanghai) Limited |  |  |
Income tax rate | 25.00% | 25.00% | 25.00%
Net income | $ (19,000) | $ (51,000) | $ (103,000)

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