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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - segment
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Concentration Risk [Line Items]        
Number of operating segments   1    
Accounts Receivable | Customer Concentration Risk | Customer A        
Concentration Risk [Line Items]        
Concentration risk, percentage   10.00%   30.00%
Accounts Receivable | Customer Concentration Risk | Customer B        
Concentration Risk [Line Items]        
Concentration risk, percentage       20.00%
Accounts Receivable | Customer Concentration Risk | Customer C        
Concentration Risk [Line Items]        
Concentration risk, percentage   17.00%   17.00%
Accounts Receivable | Customer Concentration Risk | Customer F        
Concentration Risk [Line Items]        
Concentration risk, percentage   10.00%    
Accounts Receivable | Customer Concentration Risk | Customer G        
Concentration Risk [Line Items]        
Concentration risk, percentage   16.00%    
Revenue | Customer Concentration Risk | Customer A        
Concentration Risk [Line Items]        
Concentration risk, percentage 27.00% 15.00%    
Revenue | Customer Concentration Risk | Customer B        
Concentration Risk [Line Items]        
Concentration risk, percentage 10.00%      
Revenue | Customer Concentration Risk | Customer D        
Concentration Risk [Line Items]        
Concentration risk, percentage   15.00%    
Revenue | Customer Concentration Risk | Customer E        
Concentration Risk [Line Items]        
Concentration risk, percentage     12.00%  
Revenue | Customer Concentration Risk | Customer F        
Concentration Risk [Line Items]        
Concentration risk, percentage 25.00% 14.00%