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Share capital (Tables) | 12 Months Ended
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Nov. 30, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of common stock outstanding roll forward | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | in thousands of dollars, except share amounts | ​
​ | ​ | Number of shares | ​ | ​ | Ascribed value | ​
​ |  | ​ |  |  | $ |
November 30, 2022 |  | 146,225,035 | ​ | ​ | 182,178 | ​
Private Placement, net of share issue cost | ​ | 5,854,545 | ​ | ​ | 3,115 | ​
Restricted Share Units | ​ | 3,091,614 | ​ | ​ | 1,911 | ​
Deferred Share Units | ​ | 415,056 | ​ | ​ | 468 | ​
NovaGold deferred share units conversion | ​ | 1,130 | ​ | ​ | 4 | ​
Services settled by common shares | ​ | 195,105 | ​ | ​ | 99 | ​
Joint venture equity contribution (note 4(b)) | ​ | 143,505 | ​ | ​ | 111 | ​
November 30, 2023, issued and outstanding | ​ | 155,925,990 | ​ | ​ | 187,886 | ​
Schedule of assumptions used in the pricing model | ​
​ | ​ | ​
​ |  | November 30, 2023
Risk-free interest rates |  | 3.49%
Exercise price |  | CDN$0.78
Expected life |  | 3 years
Expected volatility |  | 67.7%
Expected dividends |  | Nil
Summary of the company's stock option plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | November 30, 2023 | ​
​ | ​ | ​ | ​ | ​ | Weighted average | ​
​ | ​ | ​ | ​ | ​ | exercise price | ​
​ |  | Number of options |  |  | CDN$ |
Balance – beginning of the year |  | 11,225,400 | ​ | ​ | 2.49 | ​
Granted |  | 3,230,000 | ​ | ​ | 0.78 | ​
Cancelled/forfeited |  | (636,000) | ​ | ​ | 2.55 | ​
Expired |  | (1,170,000) | ​ | ​ | 1.43 | ​
Balance – end of the year |  | 12,649,400 | ​ | ​ | 2.15 | ​
Summary of information about stock options | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Outstanding | ​ | ​ | Exercisable | ​ | ​ | Unvested |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​ |
​ | ​ | Number of | ​ | ​ | Weighted | ​ | ​ | average | ​ | ​ | Number of | ​ | ​ | average | ​ | ​ | Number of |
​ | ​ | outstanding | ​ | ​ | average years | ​ | ​ | exercise price | ​ | ​ | exercisable | ​ | ​ | exercise price | ​ | ​ | unvested | ​
Range of exercise price - CDN |  | options |  |  | to expiry |  |  | CDN$ |  |  | options |  |  | CDN$ |  |  | options |
$0.75 to $1.00 |  | 3,180,000 | ​ | ​ | 4.02 | ​ | ​ | 0.78 | ​ | ​ | 1,413,328 | ​ | ​ | 0.78 | ​ | ​ | 1,766,672 | ​
$2.01 to $2.50 |  | 2,220,250 | ​ | ​ | 2.28 | ​ | ​ | 2.27 | ​ | ​ | 1,855,165 | ​ | ​ | 2.27 | ​ | ​ | 365,085 | ​
$2.51 to $3.00 | ​ | 5,866,650 | ​ | ​ | 1.49 | ​ | ​ | 2.64 | ​ | ​ | 5,866,650 | ​ | ​ | 2.64 | ​ | ​ | — | ​
$3.01 to $3.41 | ​ | 1,382,500 | ​ | ​ | 1.06 | ​ | ​ | 3.03 | ​ | ​ | 1,382,500 | ​ | ​ | 3.03 | ​ | ​ | — | ​
​ | ​ | 12,649,400 | ​ | ​ | 2.22 | ​ | ​ | 2.15 | ​ | ​ | 10,517,643 | ​ | ​ | 2.38 | ​ | ​ | 2,131,757 | ​
Schedule of restricted share Units and deferred share units plans | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Number of RSUs |  |  | Number of DSUs |
Balance – beginning of the year | ​ | 257,268 | ​ |  | 1,560,734 | ​
Granted |  | 4,640,089 | ​ | ​ | 1,283,023 | ​
Vested/Converted |  | (3,286,719) | ​ | ​ | (415,056) | ​
Balance – end of the year |  | 1,610,638 | ​ |  | 2,428,701 | ​

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- Definition The Company has a Restricted Share Unit Plan ("RSU Plan") and a Non-Executive Director Deferred Share Unit Plan ("DSU Plan") to provide long-term incentives to employees, officers and directors.. + References No definition available. + Details
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- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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