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Entity Level Information - Summary of Revenue by Region (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Revenues From External Customers And Long Lived Assets [Line Items]    
Revenue $ 12,240 $ 12,706
United States of America [Member]    
Revenues From External Customers And Long Lived Assets [Line Items]    
Revenue 8,627 8,218
Canada and Latin America [Member]    
Revenues From External Customers And Long Lived Assets [Line Items]    
Revenue 3,343 4,079
Europe and Middle East [Member]    
Revenues From External Customers And Long Lived Assets [Line Items]    
Revenue 261 348
Asia Pacific [Member]    
Revenues From External Customers And Long Lived Assets [Line Items]    
Revenue $ 9 $ 61