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Convertible notes payable to a related party (Details) - Convertible Debt $ / shares in Units, ¥ in Thousands, $ in Thousands | May 13, 2022 CNY (¥) investor shares | May 13, 2022 USD ($) $ / shares
--- | --- | ---
Related Party |  |
Related party balances and transactions |  |
Debt instrument term | 12 months |
Aggregate principal amount | ¥ 67,871 | $ 10,000
Number of investors | investor | 1 |
Interest rate | 5.00% |
Threshold amount of guarantee obligations considered for determination of an event of default | $ |  | $ 100,000
Period following the issuance date of convertible notes payable, to consummate initial public offering of Class A ordinary shares | 6 months |
Conversion price (in USD per share) |  | $ 9.50
Conversion-Lotus convertible notes payable (in shares) | shares | 1,052,632 |
Related Party | Debt Conversion Scenario One |  |
Related party balances and transactions |  |
Conversion price (in USD per share) |  | $ 10.00
Related Party | Minimum |  |
Related party balances and transactions |  |
Written notice period by company for redemption of convertible notes payable | 20 days |
Related Party | Maximum |  |
Related party balances and transactions |  |
Written notice period by company for redemption of convertible notes payable | 35 days |
Investor | Debt Conversion Scenario Two |  |
Related party balances and transactions |  |
Conversion price as a percentage of Initial Conversion Price | 95.00% | 95.00%
Investor | Debt Conversion Scenario Three |  |
Related party balances and transactions |  |
Written notice period by note holder for redemption of convertible notes payable | 10 days |

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