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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Concentration Risk) (Details) - Revenue Benchmark - Customer Concentration Risk
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Customer A [Member]    
Concentration Risk [Line Items]    
Concentration risk, percentage   11.00%
Customer B [Member]    
Concentration Risk [Line Items]    
Concentration risk, percentage 10.00% 10.00%