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SHARE BASED COMPENSATION (Details) - shares
12 Months Ended
Dec. 31, 2020
Dec. 20, 2020
Mar. 31, 2019
Dec. 31, 2018
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award          
Maximum aggregate number of shares that may be issued       254,697,314 187,697,314
2019 Performance Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award          
Maximum aggregate number of shares that may be issued 10,429,305 62,429,305 52,000,000    
Share options          
Share-based Compensation Arrangement by Share-based Payment Award          
Term of option 10 years        
Percentage of fair market value as of the latest practicable date upon termination for death, disability or retirement of employees 50.00%        
Threshold period for vesting or exercising option upon termination for death, disability or retirement, the employees 6 months        
Percentage of fair market value as of the latest practicable date upon other termination 30.00%        
Threshold period for vesting or exercising option upon other termination 6 months        
Share options | Vested and exercisable on second anniversary          
Share-based Compensation Arrangement by Share-based Payment Award          
Vesting percentage 50.00%        
Share options | Vested and exercisable on third anniversary          
Share-based Compensation Arrangement by Share-based Payment Award          
Vesting percentage 25.00%        
Share options | Vested and exercisable on fourth anniversary          
Share-based Compensation Arrangement by Share-based Payment Award          
Vesting percentage 25.00%