Quarterly report pursuant to Section 13 or 15(d)

Certain Risks and Concentrations (Details Textual)

v3.10.0.1
Certain Risks and Concentrations (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Customer
Supplier
Jun. 30, 2017
Dec. 31, 2017
Customer
Supplier
Major suppliers [Member] | Purchases [Member]          
Certain Risks and Concentrations (Textual)          
Concentration risk, Percentage 10.00% 10.00% 10.00% 10.00%  
Major suppliers [Member] | Accounts payable - related parties [Member]          
Certain Risks and Concentrations (Textual)          
Concentration risk, Percentage     10.00%   10.00%
Number of suppliers | Supplier     1   3
Percentage of total outstanding accounts payable related parties     74.50%   70.70%
Major customers [Member] | Sales [Member]          
Certain Risks and Concentrations (Textual)          
Concentration risk, Percentage 10.00% 10.00% 10.00% 10.00%  
Major customers [Member] | Accounts receivable [Member]          
Certain Risks and Concentrations (Textual)          
Concentration risk, Percentage     10.00%   10.00%
Number of customer | Customer     6   2