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ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Top Customers (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Entity-Wide Revenue, Major Customer, Percentage 100.00% 100.00% 100.00%
Customer A [Member]      
Entity-Wide Revenue, Major Customer, Percentage 10.00% 10.00% 13.00%
Customer B [Member]      
Entity-Wide Revenue, Major Customer, Percentage 16.00% 16.00% 0.00%
Other Top 10 Customers      
Entity-Wide Revenue, Major Customer, Percentage 31.00% 28.00% 41.00%
Remaining Customers      
Entity-Wide Revenue, Major Customer, Percentage 43.00% 46.00% 46.00%