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Taxation (Details)
$ in Thousands, ¥ in Millions, $ in Millions
12 Months Ended
Jun. 30, 2023
USD ($)
Apr. 01, 2018
HKD ($)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Taxation (Details) [Line Items]              
Assessable profit percentage   8.25%          
Accounting standards, percentage 25.00%   25.00%        
Preferential tax rate 15.00%   15.00%        
Income tax rate 15.00%     15.00%      
Net operating loss carryforwards | $ $ 35,848         $ 32,266 $ 15,830
Deferred tax assets, net operating loss carryforwards | $ 8,635         7,676 4,142
valuation allowances | $ $ 8,475         $ 7,577 $ 2,314
Profits tax rate | $   $ 2          
Taxable income | ¥     ¥ 1   ¥ 1    
Preferential tax rate     10.00%   5.00%    
PRC [Member]              
Taxation (Details) [Line Items]              
Taxable income | ¥     ¥ 3        
Preferential tax rate     2.50%   10.00%    
Minimum [Member]              
Taxation (Details) [Line Items]              
Taxable income | ¥       ¥ 1 ¥ 1    
Maximum [Member]              
Taxation (Details) [Line Items]              
Taxable income | ¥     ¥ 3   ¥ 3