Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES - Narrative (Details)

v3.20.1
COMMITMENTS AND CONTINGENCIES - Narrative (Details)
$ in Thousands
3 Months Ended
Sep. 09, 2019
USD ($)
Aug. 24, 2018
USD ($)
Aug. 24, 2017
USD ($)
patent
Apr. 21, 2017
USD ($)
installment
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Jul. 19, 2018
Mar. 31, 2018
USD ($)
Schedule of Investments [Line Items]                
Annual rent expense         $ 700      
Percentage increase in annual rent payment             3.50%  
Operating lease payments         200 $ 100    
Non-cash lease expense         $ 132 119    
Weighted average remaining lease term         3 years 3 months      
Weighted average discount rate         11.00%      
Avira, Inc.                
Schedule of Investments [Line Items]                
Sale of patent in license agreement       $ 3,900 $ 300      
Number of quarterly installments | installment       12        
Installment amount payable       $ 300        
Payable period of agreement       3 years        
Patents | Finjan Blue                
Schedule of Investments [Line Items]                
Number of assets transferred | patent     41          
Patents acquired     $ 8,500          
Payments made $ 1,500 $ 1,000 2,000          
Cash payable over subsequent four years     $ 6,500   4,000      
Useful life of intangible asset     4 years          
Patents               $ 7,000
Adjustment, present value               $ 1,400
Accretion expense         100 100    
Amortization of intangible assets         $ 500 $ 400