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PATENTS, NET OF ACCUMULATED AMORTIZATION (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]    
Remainder of 2021 $ 5,224  
2022 10,448  
2023 10,381  
2024 9,005  
2025 6,630  
Thereafter 750  
Patents, net  $ 42,438 $ 16,912