Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

v3.10.0.1
Commitments and Contingencies (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Revenue | Customer concentration        
Certain Risks and Concentrations        
Concentration Risk, Percentage 71.00% 57.00% 70.00% 57.00%