Quarterly report pursuant to Section 13 or 15(d)

Credit Risk and Concentrations (Details)

v3.19.2
Credit Risk and Concentrations (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Concentration Risk [Line Items]        
Net revenues $ 1,491 $ 839 $ 2,854 $ 1,687
Customer Concentration Risk [Member] | Customer A [Member]        
Concentration Risk [Line Items]        
Net revenues $ 750 $ 1,500
Concentration risk, percentage 50.00% 53.00%
Customer Concentration Risk [Member] | Customer B [Member]        
Concentration Risk [Line Items]        
Net revenues $ 306 $ 319 $ 612 $ 644
Concentration risk, percentage 21.00% 38.00% 21.00% 38.00%
Customer Concentration Risk [Member] | Customer C [Member]        
Concentration Risk [Line Items]        
Net revenues $ 105 $ 210
Concentration risk, percentage 13.00% 12.00%