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VIE Structure and Arrangements (Detail Textuals)
¥ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
Entity
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
USD ($)
Apr. 05, 2016
CNY (¥)
Variable Interest Entity [Line Items]        
Number of variable interest entity | Entity 2      
Contractual Agreements | SSF | YOD WFOE        
Variable Interest Entity [Line Items]        
Registered capital $ 4.2 ¥ 27.5    
Loan Agreement | YOD WFOE        
Variable Interest Entity [Line Items]        
Loan payable       ¥ 19.8
Loan Agreement | Nominee Shareholders        
Variable Interest Entity [Line Items]        
Loan payable       ¥ 0.2
VIE        
Variable Interest Entity [Line Items]        
Assets that settle obligations of VIEs | $ $ 3.5   $ 3.7  
VIE | PRC | YOD WFOE | Minimum        
Variable Interest Entity [Line Items]        
Percentages of service fees 20.00%      
VIE | PRC | YOD WFOE | Maximum        
Variable Interest Entity [Line Items]        
Percentages of service fees 30.00%      
VIE | Contractual Agreements | YOD Hong Kong        
Variable Interest Entity [Line Items]        
Registered capital $ 5.8 ¥ 38.2