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Major Customers (Details)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Revenue, Major Customer [Line Items]    
Concentration Risk Percentage Total 10.00%  
One customer[Member]    
Revenue, Major Customer [Line Items]    
Revenues Percentage 12.00%  
Customer Two [Member]    
Revenue, Major Customer [Line Items]    
Revenues Percentage   12.00%