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Mineral properties and development costs (Tables) | 12 Months Ended
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Nov. 30, 2021
Mineral properties and development costs |
Schedule of mineral properties and development costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | in thousands of dollars | ​
​ | ​ | November 30, 2020 | ​ | ​ | Acquisition costs | ​ | ​ | November 30, 2021 | ​
​ |  | $ |  |  | $ |  |  | $ |
Alaska, USA | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
West Kobuk | ​ | — | ​ | ​ | 58 | ​ | ​ | 58 | ​
East Ambler | ​ | — | ​ | ​ | 61 | ​ | ​ | 61 | ​
​ | ​ | — | ​ |  | 119 | ​ |  | 119 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | in thousands of dollars | ​
​ | ​ | ​ | ​ | ​ | Assets | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | derecognized | ​ | ​ | ​ | ​
​ | ​ | November 30, 2019 | ​ | ​ | note 4(a) | ​ | ​ | November 30, 2020 | ​
​ |  | $ |  |  | $ |  |  | $ |
Alaska, USA | ​ |  | ​ |  |  | ​ |  |  | ​
Ambler (a) | ​ | 26,631 | ​ |  | (26,631) | ​ |  | — | ​
Bornite (b) | ​ | 4,000 | ​ |  | (4,000) | ​ |  | — | ​
​ | ​ | 30,631 | ​ |  | (30,631) | ​ |  | — | ​
Schedule of mineral property expenses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | In thousands of dollars
​ | ​ | ​ | 2021 | ​ | ​ | 2020 | ​ | ​ | 2019 | ​
​ |  |  | $ |  |  | $ |  |  | $ |
Alaska, USA | ​ | ​ |  |  | ​ |  |  | ​ |  | ​
Community | ​ | ​ | — |  | ​ | 137 |  | ​ | 596 | ​
Drilling | ​ | ​ | — |  | ​ | — |  | ​ | 5,194 | ​
Engineering | ​ | ​ | — |  | ​ | 723 |  | ​ | 2,410 | ​
Environmental | ​ | ​ | — |  | ​ | 99 |  | ​ | 611 | ​
Geochemistry and geophysics | ​ | ​ | — |  | ​ | 12 |  | ​ | 1,259 | ​
Land and permitting | ​ | ​ | — |  | ​ | 134 |  | ​ | 744 | ​
Project support | ​ | ​ | — |  | ​ | 249 |  | ​ | 4,652 | ​
Other income | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (13) | ​
Wages and benefits | ​ | ​ | — |  | ​ | 191 |  | ​ | 3,758 | ​
​ | ​ | ​ | — |  | ​ | 1,545 |  | ​ | 19,211 | ​

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