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Concentration and Major Customers and Suppliers (Details)
12 Months Ended
Dec. 31, 2018
Supplier
Customer
Dec. 31, 2017
Supplier
Customer
Concentration and Major Customers and Suppliers (Textual)    
Number of major supplier | Supplier 2 2
Number of customer | Customer
Supplier One [Member]    
Concentration and Major Customers and Suppliers (Textual)    
Percentage of revenue 82.00% 69.00%
Supplier Two [Member]    
Concentration and Major Customers and Suppliers (Textual)    
Percentage of revenue 7.00% 8.00%
Sales [Member]    
Concentration and Major Customers and Suppliers (Textual)    
Percentage of revenue 10.00% 10.00%