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Related Party Balances and Transactions (Details) - Schedule of significant related party transactions
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2020
CNY (¥)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2018
CNY (¥)
Beijing WanPu Century Technology Co Ltd [Member]        
Related Party Transaction [Line Items]        
Market promotion expenses   ¥ 16 ¥ 16
Sixiang Times (Beijing) Technology Co., Ltd. [Member]        
Related Party Transaction [Line Items]        
Rental and service fees ¥ 2,106 $ 323 ¥ 986 ¥ 8,399