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INCOME TAXES - Operating loss carry forwards (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Operating loss carryforwards  
Operating Loss Carryforwards $ 54,120
Expire in 2021  
Operating loss carryforwards  
Operating Loss Carryforwards 986
Expire in 2022  
Operating loss carryforwards  
Operating Loss Carryforwards 25,093
Expire in 2023  
Operating loss carryforwards  
Operating Loss Carryforwards 10,078
Expire in 2024  
Operating loss carryforwards  
Operating Loss Carryforwards 12,660
Expire in 2025  
Operating loss carryforwards  
Operating Loss Carryforwards $ 5,303