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Convertible notes payable to a related party (Details) - Convertible notes payable to a related party $ / shares in Units, ¥ in Thousands, $ in Thousands | May 13, 2022 USD ($) item $ / shares shares | May 13, 2022 CNY (¥)
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Convertible notes payable to a related party |  |
Debt instrument term | 12 months |
Aggregate principal amount | $ 10,000 | ¥ 67,871
Interest rate | 5.00% |
Conversion price | $ 9.50 |
Number of shares issued upon conversion | shares | 1,052,632 |
Investor |  |
Convertible notes payable to a related party |  |
Number of investors | item | 1 |
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 |
Investor | In the event the Company consummates a public offering of Class A ordinary shares that is no more than six (6) months following the issuance date |  |
Convertible notes payable to a related party |  |
Conversion price | $ 10.00 |
Fair value of underlying ordinary share | $ 10.00 |
Investor | In the event the Company consummates a public offering of Class A ordinary shares that is more than six (6) months following the issuance date |  |
Convertible notes payable to a related party |  |
Conversion price as a percentage of Initial Conversion Price | 95.00% | 95.00%
Investor | If the Company fails to consummate a public offering of Class A ordinary shares on or prior to the maturity date |  |
Convertible notes payable to a related party |  |
Written notice period by note holder for redemption of convertible notes payable | 10 days |
Minimum | Investor |  |
Convertible notes payable to a related party |  |
Written notice period by company for redemption of convertible notes payable | 20 days |
Maximum | Investor |  |
Convertible notes payable to a related party |  |
Written notice period by company for redemption of convertible notes payable | 35 days |

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