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Financial Instruments (Details) $ 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] |  |  |  |  |
Financial assets, amortized cost | $ 3,874,000 |  |  | $ 16,431 |
Financial assets, FVTPL | 605,000 | $ 605 | $ 2,675,000 | 2,675 | $ 346
Financial assets, total | 4,479,000 |  |  | 19,106 |
Financial liabilities, amortized cost | 1,888,000 |  |  | 3,280 |
Financial liabilities, FVTPL | 0 |  |  | 0 |
Financial liabilities, total | 1,888,000 |  |  | 3,280 |
Accounts Receivable |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Financial assets, amortized cost | 372,000 |  |  | 827 |
Financial assets, FVTPL | 0 |  |  | 0 |
Financial assets, total | 372,000 |  |  | 827 |
Cash |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Financial assets, amortized cost | 3,259,000 |  |  | 15,361 |
Financial assets, FVTPL | 0 |  |  | 0 |
Financial assets, total | 3,259,000 |  |  | 15,361 |
Marketable Securities |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Financial assets, amortized cost | 0 |  |  | 0 |
Financial assets, FVTPL | 605,000 |  |  | 2,675 |
Financial assets, total | 605,000 |  |  | 2,675 |
Deposits |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Financial assets, amortized cost | 243,000 |  |  | 243 |
Financial assets, FVTPL | 0 |  |  | 0 |
Financial assets, total | 243,000 |  |  | 243 |
Accounts Payable and Accrued Liabilities |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Financial liabilities, amortized cost | 1,888,000 |  |  | 3,280 |
Financial liabilities, FVTPL | 0 |  |  | 0 |
Financial liabilities, total | $ 1,888,000 |  |  | $ 3,280 |

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