Annual report pursuant to Section 13 and 15(d)

Patents and Other Intangible Assets - Schedule of Future Amortization (Details)

v3.20.1
Patents and Other Intangible Assets - Schedule of Future Amortization (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]    
Net patent and other intangible assets $ 2,895 $ 3,349
Finite-lived intangible assets, excluding patents in application process    
Finite-Lived Intangible Assets [Line Items]    
2020 465  
2021 465  
2022 424  
2023 344  
2024 337  
Thereafter 860  
Net patent and other intangible assets $ 2,895