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Bank borrowings (Details Narrative) - ZHEJIANG TIANLAN | 12 Months Ended
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Dec. 31, 2024 CNY (¥) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2022 USD ($)
Borrowed By The Company |  |  |  |
Interest fixed rates | 3.85% | 3.85% |  |
Interest paid | ¥ 54,000 | ¥ 32,000 |  | $ 408,000
Borrowed By Subsidiaries Company |  |  |  |
Interest fixed rates | 4.85% | 4.85% |  |
Interest paid | ¥ 184,000 | ¥ 221,000 | ¥ 218,000 |

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- Definition Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-2 + Details
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- Definition Stated interest rate of the subordinated debt. + References No definition available. + Details
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