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Business concentrations - Summary of Customers that Accounted for 10% or Greater of Accounts Receivable (Details) - Customer Concentration Risk [Member] - Accounts Receivable [Member]
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Customer B [Member]    
Disclosure Of Customers With Product Revenue and Account Receivable For The Period [Line Items]    
Concentration Risk, Percentage 21.00% 21.00%
Customer C [Member]    
Disclosure Of Customers With Product Revenue and Account Receivable For The Period [Line Items]    
Concentration Risk, Percentage 34.00% 35.00%
Customer F [Member]    
Disclosure Of Customers With Product Revenue and Account Receivable For The Period [Line Items]    
Concentration Risk, Percentage 16.00%  
Customer D [Member]    
Disclosure Of Customers With Product Revenue and Account Receivable For The Period [Line Items]    
Concentration Risk, Percentage   11.00%