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Note 4 - Long-term Investments (Details Textual) $ / shares in Units, $ in Thousands |  |  |  | 6 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 13, 2022 CAD ($) $ / shares shares | Nov. 05, 2021 CAD ($) | Mar. 11, 2021 CAD ($) $ / shares shares | Nov. 30, 2022 CAD ($) | Nov. 30, 2022 CAD ($) shares | Nov. 30, 2021 CAD ($) shares | Nov. 30, 2020 CAD ($) shares | Nov. 30, 2022 $ / shares shares | Oct. 27, 2022 shares | Jul. 27, 2022 shares | Oct. 28, 2021 shares | Mar. 11, 2021 $ / shares shares
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income, net of tax, unrealized gains (losses) from long-term investments |  |  |  |  | $ (60,940) | $ 9,257 |  |  |  |  |  |
Other comprehensive income, deferred tax recovery (expense) on long-term investments |  |  |  |  | 8,227 | (1,250) |  |  |  |  |  |
Reclassification adjustments on exchange differences on translation, net of tax |  |  |  |  | (0) | (857) |  |  |  |  |  |
Increase (decrease) in equity investment designated at fair value through other comprehensive income, number of shares (in shares) | shares |  |  |  |  |  |  | 20,000,000 |  |  |  |  |
Increase (decrease) through equity investments designated at fair value through other comprehensive income |  |  |  |  |  | 8,689 | $ 120,833 |  |  |  |  |
Margin loan facility [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, securities pledged as collateral, shares (in shares) | shares |  |  |  |  |  |  |  |  | 20,700,000 | 20,700,000 | 20,000,000 |
GRC [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share price (in CAD per share) | (per share) |  |  | $ 5.92 |  |  |  |  |  |  |  |  | $ 4.72
Gold Royalty Corp [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income, net of tax, unrealized gains (losses) from long-term investments |  |  |  |  | $ (59,733) | 9,257 |  |  |  |  |  |
Gain (loss) on fair value remeasurement of investment |  | $ 5,452 | $ 118,201 |  |  |  |  |  |  |  |  |
Non-controlling investment, number of shares (in shares) | shares |  |  | 20,000,000 |  |  |  |  | 21,180,000 |  |  |  | 20,000,000
Share price (in CAD per share) | $ / shares |  |  |  |  |  |  |  | $ 2.66 |  |  |  |
Gain (loss) on ownership dilution |  |  |  |  |  | $ 5,169 |  |  |  |  |  |
Investment in associate, amount derecognized |  | 114,524 |  |  |  |  |  |  |  |  |  |
Gain (loss) on loss of significant influence over investment |  | 6,309 |  |  |  |  |  |  |  |  |  |
Reclassification adjustments on exchange differences on translation, net of tax |  | (857) |  |  |  |  |  |  |  |  |  |
Increase (decrease) in equity investment designated at fair value through other comprehensive income, number of shares (in shares) | shares |  |  |  |  | 1,178,659 | 21,178,659 | 20,000,000 |  |  |  |  |
Increase (decrease) through equity investments designated at fair value through other comprehensive income |  |  |  |  | $ 5,200 | $ 5,200 | $ 120,833 |  |  |  |  |
Gold Royalty Corp [member] | Margin loan facility [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, securities pledged as collateral, shares (in shares) | shares |  |  |  |  |  |  |  | 20,700,000 |  |  |  |
Gold Royalty Corp [member] | Entity [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Investment in equity securities, fair value |  | $ 120,833 |  |  |  |  |  |  |  |  |  |
NevGold Corp [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income, net of tax, unrealized gains (losses) from long-term investments |  |  |  |  | $ (1,207) |  |  |  |  |  |  |
Share price (in CAD per share) | $ / shares | $ 0.675 |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in equity investment designated at fair value through other comprehensive income, number of shares (in shares) | shares | 1,481,481 |  |  |  | 1,481,481 | 5,925,925 |  |  |  |  |  |
Increase (decrease) through equity investments designated at fair value through other comprehensive income | $ 1,000 |  |  |  | $ 1,000 | $ 3,489 |  |  |  |  |  |
Number of common shares receipt (in shares) | shares |  |  |  |  | 4,444,444 |  |  |  |  |  |  |
Common shares receipt, fair value |  |  |  | $ 2,489 | $ 2,489 |  |  |  |  |  |  |
NevGold Corp [member] | Almaden project [member] |  |  |  |  |  |  |  |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in equity investment designated at fair value through other comprehensive income, number of shares (in shares) | shares |  |  |  |  | 5,925,925 |  |  |  |  |  |  |
Equity investment designated at fair value through other comprehensive income, percentage |  |  |  |  | 10.50% |  |  |  |  |  |  |

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