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Other Current Assets and NonCurrent Assets (Details) - Schedule of Other Current Assets ¥ in Thousands, $ in Thousands	Jun. 30, 2024 CNY (¥)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CNY (¥)
Schedule of Other Current Assets [Abstract]
Value-added tax recoverable	¥ 9,036	$ 1,243	¥ 8,887
Loans to third parties	19,217	2,644	18,827
Refund receivable from supplier	2,746	378	2,746
Prepayment	43,603	6,000	42,599
Deposit in Escrow account			21,300
Deposits	2,091	288	1,828
Staff advances	494	68	422
Others	1,132	157	692
Less: Allowance for doubtful accounts	(2,353)	(324)	(2,488)	$ (342)	¥ (1,435)
Other current assets	¥ 75,966	$ 10,454	¥ 94,813

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The amount of refund receivable from supplier.

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Long-Term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients.

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Amount of allowance for credit loss on receivable, classified as other and current.

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Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter.

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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

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Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

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