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Segments and Major Customers (Details 2) - Customer Concentration Risk - Sales, net
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Customer A    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue   17.00%
Customer B    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue   13.00%
Customer C    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue   14.00%
Customer D [Member]    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue 34.00%  
Customer E [Member]    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue 11.00%