Annual report pursuant to Section 13 and 15(d)

Geographic Information - Summary of Long-lived Assets by Geographic Area (Details)

v3.20.1
Geographic Information - Summary of Long-lived Assets by Geographic Area (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]    
Long-lived assets $ 3,393 $ 2,341
Italy    
Segment Reporting Information [Line Items]    
Long-lived assets $ 1,772 $ 1,136
Italy | Geographic Concentration Risk | Long-Lived Assets    
Segment Reporting Information [Line Items]    
Long-lived assets, Percentage 52.20% 48.50%
India    
Segment Reporting Information [Line Items]    
Long-lived assets $ 1,162 $ 1,042
India | Geographic Concentration Risk | Long-Lived Assets    
Segment Reporting Information [Line Items]    
Long-lived assets, Percentage 34.20% 44.50%
United States    
Segment Reporting Information [Line Items]    
Long-lived assets $ 437 $ 126
United States | Geographic Concentration Risk | Long-Lived Assets    
Segment Reporting Information [Line Items]    
Long-lived assets, Percentage 12.90% 5.40%
Rest of the World    
Segment Reporting Information [Line Items]    
Long-lived assets $ 22 $ 37
Rest of the World | Geographic Concentration Risk | Long-Lived Assets    
Segment Reporting Information [Line Items]    
Long-lived assets, Percentage 0.70% 1.60%