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INTANGIBLE ASSETS, NET, AND GOODWILL - Schedule of Future Amortization Expense (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]    
Total amortization expense $ 2,119 $ 1,576
Intangible Assets, Excluding Pending Patents    
Finite-Lived Intangible Assets [Line Items]    
2021 68  
2022 58  
2023 56  
2024 55  
2025 55  
2026 and thereafter 551  
Total amortization expense $ 843