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SIGNIFICANT BUSINESS CONCENTRATIONS AND RISK (Details)
12 Months Ended
Dec. 31, 2020
Customer
Supplier
Dec. 31, 2019
Customer
Concentration Risk [Abstract]    
Number of suppliers | Supplier 1  
Sales Revenue [Member] | Customer Concentration Risk [Member]    
Concentration Risk [Abstract]    
Number of customers accounted more than 0.3% of revenue 0 0
Sales Revenue [Member] | Customer Concentration Risk [Member] | Five Major Customers [Member]    
Concentration Risk [Abstract]    
Number of customers accounted more than 0.3% of revenue 5 5
Concentration risk percentage 1.10% 1.70%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Major Customers [Member]    
Concentration Risk [Abstract]    
Number of customers accounted more than 0.3% of revenue 2 2
Concentration risk percentage 29.90% 35.30%