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PROPERTY AND EQUIPMENT - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
PROPERTY AND EQUIPMENT        
Depreciation $ 500 $ 100 $ 1,000 $ 100