SIGNIFICANT ACCOUNTING POLICIES - Income taxes (Details) - CNY (¥) |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|
| Income taxes | |||
| Unrecognized tax benefits accrued for interest and penalties | ¥ 0 | ¥ 0 | ¥ 0 |
| Uncertain tax positions | ¥ 0 | ¥ 0 | ¥ 0 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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