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Income taxes - Losses Expiry (Details) $ in Thousands | Nov. 30, 2021 USD ($)
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CA |
Non-capital losses | $ 51,808
Alaska, USA |
Operating losses | 142,524
2022 | Alaska, USA |
Operating losses | 366
2023 | Alaska, USA |
Operating losses | 960
2024 | Alaska, USA |
Operating losses | 569
2025 | Alaska, USA |
Operating losses | 1,530
Thereafter | CA |
Non-capital losses | 51,808
Thereafter | Alaska, USA |
Operating losses | $ 139,099

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