Lease (Details) ¥ in Thousands, $ in Thousands	6 Months Ended
Jun. 30, 2024 CNY (¥)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 CNY (¥)
Lease [Abstract]
Total lease expense	¥ 4,585	$ 631	¥ 3,627

Amount of operating lease expense. Excludes sublease income.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-4

Name:	us-gaap_OperatingLeaseExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration