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Company Operations by Product, Customer and Geographic Area (Details Textual)
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
segment
Dec. 31, 2015
USD ($)
Segment Reporting [Abstract]    
Number of segments | segment 1  
Concentration Risk [Line Items]    
Accounts receivable $ 17,839 $ 7,487
Accounts Receivable | Customer Concentration Risk | Customer One    
Concentration Risk [Line Items]    
Concentration risk, percentage 42.00%  
Accounts receivable $ 7,472  
Accounts Receivable | Customer Concentration Risk | Customer Two    
Concentration Risk [Line Items]    
Concentration risk, percentage 24.00%  
Accounts receivable $ 4,307  
Accounts Receivable | Customer Concentration Risk | Customer Three    
Concentration Risk [Line Items]    
Concentration risk, percentage 24.00%  
Accounts receivable $ 4,291