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Accounts payable and accrued liabilities (Details) - USD ($)
$ in Thousands
Nov. 30, 2021
Nov. 30, 2020
Accounts payable and accrued liabilities.    
Trade accounts payable $ 205 $ 226
Accrued liabilities 105 198
Accrued salaries and vacation 542 464
Accounts payable and accrued liabilities $ 852 $ 888