Organization and Principal Activities - Schedule of Consolidated Statements of Cash Flow Activities (Details) - VIE [Member] ¥ in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2024 CNY (¥)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2022 CNY (¥)
Schedule of Consolidated Statements of Cash Flow Activities [Line Items]
Net cash provided by operating activities	¥ 100,323	$ 13,744	¥ 42,562	¥ 155,897
Net cash used in investing activities	(19,440)	(2,663)	(42,554)	(122,236)
Net cash (used in) provided by financing activities	¥ 216	$ 30	¥ 836	¥ (198)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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