| Accounts payable and accrued liabilities | 6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||
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| Jun. 30, 2022 | ||||||||||||||||||||||||||||||||||||||||||||||||||
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| Accounts payable and accrued liabilities | 10.Accounts payable and accrued liabilities Accounts payable and accrued liabilities consisted of the following: 
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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- References No definition available. 
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