Quarterly report pursuant to Section 13 or 15(d)

Geographic Information - Schedule of property and equipment, net by location (Details)

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Geographic Information - Schedule of property and equipment, net by location (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net $ 3,286 $ 3,505
United States    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 2,389 3,174
Americas (excluding United States)    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net 364 192
Asia    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property and equipment, net $ 533 $ 139