Quarterly report pursuant to Section 13 or 15(d)

Credit Risk and Concentrations (Details)

v3.8.0.1
Credit Risk and Concentrations (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Concentration Risk [Line Items]        
Net revenues $ 11,924 $ 11,240 $ 40,502 $ 38,659
Customer concentration risk [Member] | Customer A [Member]        
Concentration Risk [Line Items]        
Net revenues     $ 6,345
Concentration risk, percentage     16.00%
Customer concentration risk [Member] | Customer B [Member]        
Concentration Risk [Line Items]        
Net revenues $ 1,463 $ 10,180
Concentration risk, percentage 13.00% 26.00%
Customer concentration risk [Member] | Customer C [Member]        
Concentration Risk [Line Items]        
Net revenues $ 1,424    
Concentration risk, percentage 12.00%    
Customer concentration risk [Member] | Customer D [Member]        
Concentration Risk [Line Items]        
Net revenues $ 1,237    
Concentration risk, percentage 10.00%    
Customer concentration risk [Member] | Customer E [Member]        
Concentration Risk [Line Items]        
Net revenues $ 1,857    
Concentration risk, percentage 17.00%