Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Summary of Net Revenue Classified by Major Geographic Areas (Details)

v3.10.0.1
Segment Reporting - Summary of Net Revenue Classified by Major Geographic Areas (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Revenues From External Customers And Long Lived Assets [Line Items]        
Net revenue $ 2,064 $ 1,291 $ 4,269 $ 3,933
United States [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Net revenue 1,992 1,178 3,900 3,648
All other countries [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Net revenue $ 72 $ 113 $ 369 $ 285