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Note 10 - Share Capital - Summary of Options Outstanding and Exercisable (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Nov. 30, 2022 $ / shares | Nov. 30, 2021 $ / shares | Nov. 30, 2020 $ / shares
Statement Line Items [Line Items] |  |  |
Options Outstanding Number of Options Outstanding | 14,003,075 | 12,444,150 | 10,732,000
Options Outstanding Weighted Average Exercise Price (in CAD per share) | $ 1.61 | $ 1.63 | $ 1.51
Options Outstanding Weighted Average Remaining Contractual Life (Year) | 3 years 2 months 12 days |  |
Options Exercisable Number of Options Exercisable | 9,955,070 |  |
Options Exercisable Weighted Average Exercise Price (in CAD per share) | $ 1.61 |  |
Options Exercisable Weighted Average Remaining Contractual Life (Year) | 2 years 6 months 25 days |  |
Share options one [member] |  |  |
Statement Line Items [Line Items] |  |  |
Options Outstanding Number of Options Outstanding | 1,837,500 |  |
Options Outstanding Weighted Average Exercise Price (in CAD per share) | $ 0.79 |  |
Options Outstanding Weighted Average Remaining Contractual Life (Year) | 1 year |  |
Options Exercisable Number of Options Exercisable | 1,837,500 |  |
Options Exercisable Weighted Average Exercise Price (in CAD per share) | $ 0.79 |  |
Options Exercisable Weighted Average Remaining Contractual Life (Year) | 1 year |  |
Share options one [member] | Bottom of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 0.78 |  |
Share options one [member] | Top of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 0.96 |  |
Share options two [member] |  |  |
Statement Line Items [Line Items] |  |  |
Options Outstanding Number of Options Outstanding | 3,099,500 |  |
Options Outstanding Weighted Average Exercise Price (in CAD per share) | $ 1.13 |  |
Options Outstanding Weighted Average Remaining Contractual Life (Year) | 1 year 8 months 26 days |  |
Options Exercisable Number of Options Exercisable | 2,889,500 |  |
Options Exercisable Weighted Average Exercise Price (in CAD per share) | $ 1.11 |  |
Options Exercisable Weighted Average Remaining Contractual Life (Year) | 1 year 6 months 14 days |  |
Share options two [member] | Bottom of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 0.97 |  |
Share options two [member] | Top of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 1.57 |  |
Share options three [member] |  |  |
Statement Line Items [Line Items] |  |  |
Options Outstanding Number of Options Outstanding | 4,145,500 |  |
Options Outstanding Weighted Average Exercise Price (in CAD per share) | $ 1.60 |  |
Options Outstanding Weighted Average Remaining Contractual Life (Year) | 4 years 11 months 23 days |  |
Options Exercisable Number of Options Exercisable | 1,036,375 |  |
Options Exercisable Weighted Average Exercise Price (in CAD per share) | $ 1.60 |  |
Options Exercisable Weighted Average Remaining Contractual Life (Year) | 4 years 11 months 23 days |  |
Share options three [member] | Bottom of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 1.58 |  |
Share options three [member] | Top of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 1.60 |  |
Share options four [member] |  |  |
Statement Line Items [Line Items] |  |  |
Options Outstanding Number of Options Outstanding | 2,516,250 |  |
Options Outstanding Weighted Average Exercise Price (in CAD per share) | $ 1.83 |  |
Options Outstanding Weighted Average Remaining Contractual Life (Year) | 3 years 11 months 12 days |  |
Options Exercisable Number of Options Exercisable | 1,885,000 |  |
Options Exercisable Weighted Average Exercise Price (in CAD per share) | $ 1.83 |  |
Options Exercisable Weighted Average Remaining Contractual Life (Year) | 3 years 11 months 12 days |  |
Share options four [member] | Bottom of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 1.61 |  |
Share options four [member] | Top of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 1.83 |  |
Share options five [member] |  |  |
Statement Line Items [Line Items] |  |  |
Options Outstanding Number of Options Outstanding | 2,404,325 |  |
Options Outstanding Weighted Average Exercise Price (in CAD per share) | $ 2.67 |  |
Options Outstanding Weighted Average Remaining Contractual Life (Year) | 2 years 11 months 4 days |  |
Options Exercisable Number of Options Exercisable | 2,306,695 |  |
Options Exercisable Weighted Average Exercise Price (in CAD per share) | $ 2.70 |  |
Options Exercisable Weighted Average Remaining Contractual Life (Year) | 2 years 10 months 17 days |  |
Share options five [member] | Bottom of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 1.84 |  |
Share options five [member] | Top of range [member] |  |  |
Statement Line Items [Line Items] |  |  |
Exercise Prices (in CAD per share) | $ 3.38 |  |

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