Quarterly report pursuant to Section 13 or 15(d)

Revenue Disaggregation of Revenue (Details)

v3.20.1
Revenue Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Revenue from contracts with customers $ 6,227 $ 7,098
North America    
Disaggregation of Revenue [Line Items]    
Revenue from contracts with customers 4,050 4,308
Europe    
Disaggregation of Revenue [Line Items]    
Revenue from contracts with customers 1,874 2,241
Asia    
Disaggregation of Revenue [Line Items]    
Revenue from contracts with customers 303 549
Software licenses and appliances    
Disaggregation of Revenue [Line Items]    
Revenue from contracts with customers 1,540 1,005
Subscription, maintenance and support    
Disaggregation of Revenue [Line Items]    
Revenue from contracts with customers 4,160 5,563
Professional services and other    
Disaggregation of Revenue [Line Items]    
Revenue from contracts with customers 527 530
Total service    
Disaggregation of Revenue [Line Items]    
Revenue from contracts with customers $ 4,687 $ 6,093