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Property, equipment and software, net (Detail Textuals)
¥ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
CNY (¥)
Dec. 31, 2016
CAD ($)
Property, Plant and Equipment [Abstract]      
Depreciation and amortization expenses ¥ 1.1 ¥ 1.0 $ 1.2
Estimated amortization expenses for 2019 1.6    
Estimated amortization expenses for 2020 1.6    
Estimated amortization expenses for 2021 1.5    
Estimated amortization expenses for 2022 1.5    
Estimated amortization expenses for 2023 ¥ 1.2