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Income taxes - Expiration of non-capital losses for income tax purposes (Details) $ in Thousands | Dec. 31, 2024 CAD ($)
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Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | $ 63,213
2026 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 3
2027 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 278
2032 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 175
2033 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 9,095
2037 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 5
2039 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 29
2040 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 406
2041 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 3,569
2042 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 3,576
2043 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 3,398
2044 |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | 2,731
No expiry |
Operating Loss Carryforwards [Line Items] |
Operating loss carryforwards | $ 39,948

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