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Financial Instruments (Details 1) $ in Thousands | Dec. 31, 2021 USD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2020 CAD ($) | Dec. 31, 2019 CAD ($)
--- | --- | --- | --- | --- | ---
Statement [Line Items] |  |  |  |  |
Marketable securities | $ 605,000 | $ 605 | $ 2,675,000 | $ 2,675 | $ 346
Level 1 |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Marketable securities | 282,000 |  |  | 2,165 |
Level 2 |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Marketable securities | $ 323,000 |  |  | $ 510 |

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