Segment and Geographic Information - Summary of Revenues Based on Location of Customers (Details) - USD ($) $ in Thousands |
12 Months Ended | |
---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
|
Revenues From External Customers And Long Lived Assets [Line Items] | ||
Total revenues | $ 1,169 | $ 1,464 |
United States | ||
Revenues From External Customers And Long Lived Assets [Line Items] | ||
Total revenues | 722 | 1,168 |
India | ||
Revenues From External Customers And Long Lived Assets [Line Items] | ||
Total revenues | 7 | 90 |
Africa | ||
Revenues From External Customers And Long Lived Assets [Line Items] | ||
Total revenues | 182 | 115 |
Canada | ||
Revenues From External Customers And Long Lived Assets [Line Items] | ||
Total revenues | $ 258 | $ 91 |