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Share capital - Stock options outstanding (Details) | 12 Months Ended
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Nov. 30, 2023 $ / shares shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |
Number of outstanding options | shares | 12,649,400
Weighted average years to expiry | 2 years 2 months 19 days
Weighted average exercise price options outstanding | $ 2.15
Number of exercisable options | shares | 10,517,643
Weighted average exercise price exercisable | $ 2.38
Number of unvested options | shares | 2,131,757
$0.75 to $1.00 |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |
Exercise price lower range limit | $ 0.75
Exercise price upper range limit | $ 1.00
Number of outstanding options | shares | 3,180,000
Weighted average years to expiry | 4 years 7 days
Weighted average exercise price options outstanding | $ 0.78
Number of exercisable options | shares | 1,413,328
Weighted average exercise price exercisable | $ 0.78
Number of unvested options | shares | 1,766,672
$2.01 to $2.50 |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |
Exercise price lower range limit | $ 2.01
Exercise price upper range limit | $ 2.50
Number of outstanding options | shares | 2,220,250
Weighted average years to expiry | 2 years 3 months 10 days
Weighted average exercise price options outstanding | $ 2.27
Number of exercisable options | shares | 1,855,165
Weighted average exercise price exercisable | $ 2.27
Number of unvested options | shares | 365,085
$2.51 to $3.00 |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |
Exercise price lower range limit | $ 2.51
Exercise price upper range limit | $ 3.00
Number of outstanding options | shares | 5,866,650
Weighted average years to expiry | 1 year 5 months 26 days
Weighted average exercise price options outstanding | $ 2.64
Number of exercisable options | shares | 5,866,650
Weighted average exercise price exercisable | $ 2.64
$3.01 to $3.50 |
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] |
Exercise price lower range limit | 3.01
Exercise price upper range limit | $ 3.41
Number of outstanding options | shares | 1,382,500
Weighted average years to expiry | 1 year 21 days
Weighted average exercise price options outstanding | $ 3.03
Number of exercisable options | shares | 1,382,500
Weighted average exercise price exercisable | $ 3.03

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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