Property and Equipment, Net (Details) - Schedule of Property and Equipment, Net ¥ in Thousands, $ in Thousands	Dec. 31, 2023 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CNY (¥)
At cost:
Total cost	¥ 11,452	$ 1,613	¥ 10,890
Less: accumulated depreciation	(9,259)	(1,304)	(8,155)
Property and equipment, net	2,193	309	2,735
Computer and transmission equipment [Member]
At cost:
Total cost	9,521	1,341	8,953
Furniture, fixtures and office equipment [Member]
At cost:
Total cost	¥ 1,931	$ 272	¥ 1,937

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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