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Major Customer and Geographic Information (Non-affiliated Customers) (Details) - Revenue [Member]
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Customer A [Member]    
Revenue, Major Customer [Line Items]    
Risk percentage 55.00% 21.00%
Customer B [Member]    
Revenue, Major Customer [Line Items]    
Risk percentage 18.00% 59.00%