Accounts payable and accrued liabilities (Details) - USD ($) $ in Thousands |
May 31, 2020 |
Nov. 30, 2019 |
|---|---|---|
| Accounts payable and accrued liabilities | ||
| Trade accounts payable | $ 232 | $ 902 |
| Accrued liabilities | 214 | 721 |
| Accrued salaries and vacation | 93 | 731 |
| Accounts payable and accrued liabilities | $ 539 | $ 2,354 |