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INCOME TAXES (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
INCOME TAXES      
Unrecognized tax benefits $ 0 $ 0  
Interest or penalties related to unrecognized tax benefits 0 0  
Recognized income tax expenses $ 0 $ 0 $ 0