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Revenue - Disaggregated by Geographic Region (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
region
Mar. 31, 2019
USD ($)
Disaggregation of Revenue    
Number of primary geographic regions | region 3  
Revenue $ 10,108 $ 10,026
North America    
Disaggregation of Revenue    
Revenue 1,104 2,189
EMEA    
Disaggregation of Revenue    
Revenue 2,108 2,634
APJ    
Disaggregation of Revenue    
Revenue $ 6,896 $ 5,203