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Concentration and Major Customers and Suppliers (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Supplier
Sep. 30, 2018
Supplier
Sep. 30, 2019
Supplier
Customer
Sep. 30, 2018
Supplier
Customer
Concentration and Major Customers and Suppliers (Textual)        
Number of major supplier | Supplier 4 3 3 3
Number of customer | Customer    
Sales [Member]        
Concentration and Major Customers and Suppliers (Textual)        
Percentage of concentration risk 10.00% 10.00%    
Supplier One [Member]        
Concentration and Major Customers and Suppliers (Textual)        
Percentage of concentration risk 71.00% 86.00% 77.00% 85.00%
Supplier Two [Member]        
Concentration and Major Customers and Suppliers (Textual)        
Percentage of concentration risk 13.00% 7.00% 10.00% 4.00%
Supplier Three [Member]        
Concentration and Major Customers and Suppliers (Textual)        
Percentage of concentration risk 4.00% 3.00% 4.00% 3.00%
Supplier Four [Member]        
Concentration and Major Customers and Suppliers (Textual)        
Percentage of concentration risk 4.00%