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Convertible notes payable (Tables) | 6 Months Ended
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Jun. 30, 2024
Debt Disclosure [Abstract] |
Schedule of convertible debt | The following is a summary of the Company’s convertible notes payable and its fair value as of December 31, 2023 and June 30, 2024.
| Principal amount |  | Unamortized debt issuance costs |  | Net Carrying amount |  | Fair Value
|  |  |  |  |  |  | Amount |  | Leveling
| RMB |  | RMB |  | RMB |  |  |  |
5% Investor Notes due on November 8, 2025 |  |  |  |  |  |  |  |  |
As of December 31, 2023 | 461,494 |  |  | (5,793) |  |  | 455,701 |  |  | 396,884 |  |  | Level 3
As of June 30, 2024 | 472,368 |  |  | (4,751) |  |  | 467,617 |  |  | 415,702 |  |  | Level 3
The fair value of the convertible notes payable was estimated using the binomial model with the key assumptions including risk-free rate of return, volatility, and bond yield.

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- Definition Tabular disclosure of convertible debt instrument. Includes, but is not limited to, principal amount and amortized premium or discount. + References No definition available. + Details
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- References No definition available. + Details
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