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Major Customer and Geographic Information (Schedule of Revenues from Non-affiliated Customers) (Details) - Revenue [Member]
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Customer A [Member]        
Revenue, Major Customer [Line Items]        
Risk percentage 72.00% 36.00% 59.00% 35.00%
Customer B [Member]        
Revenue, Major Customer [Line Items]        
Risk percentage 8.00% 10.00% 14.00% 11.00%
Customer C [Member]        
Revenue, Major Customer [Line Items]        
Risk percentage 8.00% 24.00% 13.00% 27.00%