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Major Customer and Geographic Information (Schedule of Non-affiliated Customers with Accounts Receivable) (Details) - Accounts Receivable [Member]
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2020
Customer A [Member]    
Revenue, Major Customer [Line Items]    
Risk percentage 16.00% 30.00%
Customer B [Member]    
Revenue, Major Customer [Line Items]    
Risk percentage 73.00% 65.00%