Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Segment Reporting - Summary of Net Revenue Classified by Major Geographic Areas (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Revenues From External Customers And Long Lived Assets [Line Items]        
Net revenue $ 914 $ 1,908 $ 3,188 $ 5,809
United States [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Net revenue 905 1,618 2,972 5,219
All other countries [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Net revenue $ 9 $ 290 $ 216 $ 590