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Bank borrowings (Details) ¥ in Thousands | Dec. 31, 2022 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 CNY (¥)
--- | --- | --- | --- | ---
Bank loan | $ | $ 84,000 |  | $ 88,000 |
ZHEJIANG TIANLAN |  |  |  |
Bank loan |  | ¥ 5,508 |  | ¥ 13,518
ZHEJIANG TIANLAN | Bank Loan Borrowed by the Company |  |  |  |
Bank loan |  | 501 |  | 8,511
ZHEJIANG TIANLAN | Bank Loan Borrowed by Subsidiaries of the Company |  |  |  |
Bank loan |  | ¥ 5,007 |  | ¥ 5,007

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- Definition Amount of short-term bank loan secured by broker-dealer customer's security. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
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