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Segmented and geographic information, and major customers (Major Customers) (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Major Customer One [Member]    
Disclosure of major customers [line items]    
Percentage of revenue 90.00% 100.00%
Major Customer Two [Member]    
Disclosure of major customers [line items]    
Percentage of revenue 9.00%