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v3.25.3

Share capital, Stock Options Activity (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 31, 2025 $ / shares $ / shares shares | Oct. 31, 2025 USD ($) $ / shares shares | Oct. 31, 2024 USD ($) $ / shares shares | Jul. 31, 2025 $ / shares shares | Jul. 31, 2025 $ / shares shares | Nov. 06, 2024 shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 108,644 | 62,772 | 62,772 | 62,772 |
Forfeited (in shares) |  |  |  | (1,395) |  |
Granted (in shares) |  | 0 | 0 | 50,000 |  |
Cancelled (in shares) |  |  |  | (2,733) |  |
Outstanding (in shares) |  | 108,644 | 62,772 | 108,644 | 108,644 |
Exercisable (in shares) | 51,859 | 51,859 |  | 51,859 | 51,859 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares |  | $ 22.79 | $ 40.2 | $ 40.2 | $ 40.2 |
Forfeited (in dollars per share) | $ / shares |  |  |  | 37.74 |  |
Granted (in dollars per share) | $ / shares |  |  |  | 2.32 |  |
Cancelled (in dollars per share) | $ / shares |  |  |  | 37.74 |  |
Outstanding (in dollars per share) | $ / shares |  | 22.5 | $ 40.2 | 22.79 | 22.79 |
Exercisable (in dollars per share) | $ / shares | $ 39.63 | $ 39.63 |  | $ 40.16 | $ 40.16 |
Weighted average remaining contractual life |  | 4 years 7 months 28 days |  |  | 4 years 10 months 24 days |
Stock options outstanding (in shares) | 108,644 | 108,644 | 62,772 | 108,644 | 108,644 | 58,644
Share-based payments | $ |  | $ 33,409 |  |  |  |
Exercise Price Range One [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 2,676 |  |  |  |
Exercisable (in shares) | 2,676 | 2,676 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 52.4 |  |  |  |  |
Expiry date |  | Jan. 17, 2028 |  |  |  |
Stock options outstanding (in shares) | 2,676 | 2,676 |  |  |  |
Exercise Price Range Two [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 9,176 |  |  |  |
Exercisable (in shares) | 9,176 | 9,176 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 52.4 |  |  |  |  |
Expiry date |  | Feb. 06, 2028 |  |  |  |
Stock options outstanding (in shares) | 9,176 | 9,176 |  |  |  |
Exercise Price Range Three [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 8,411 |  |  |  |
Exercisable (in shares) | 7,035 | 7,035 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 72.6 |  |  |  |  |
Expiry date |  | May 15, 2028 |  |  |  |
Stock options outstanding (in shares) | 8,411 | 8,411 |  |  |  |
Exercise Price Range Four [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 764 |  |  |  |
Exercisable (in shares) | 764 | 764 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 77.2 |  |  |  |  |
Expiry date |  | Jun. 26, 2028 |  |  |  |
Stock options outstanding (in shares) | 764 | 764 |  |  |  |
Exercise Price Range Five [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 50,000 |  |  |  |
Exercisable (in shares) | 0 | 0 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares |  | $ 2.32 |  |  |  |
Expiry date |  | Mar. 26, 2030 |  |  |  |
Stock options outstanding (in shares) | 50,000 | 50,000 |  |  |  |
Exercise Price Range Six [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 22,938 |  |  |  |
Exercisable (in shares) | 19,500 | 19,500 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 52.4 |  |  |  |  |
Expiry date |  | Jan. 17, 2032 |  |  |  |
Stock options outstanding (in shares) | 22,938 | 22,938 |  |  |  |
Exercise Price Range Seven [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 4,588 |  |  |  |
Exercisable (in shares) | 3,900 | 3,900 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 52.4 |  |  |  |  |
Expiry date |  | Mar. 01, 2032 |  |  |  |
Stock options outstanding (in shares) | 4,588 | 4,588 |  |  |  |
Exercise Price Range Eight [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 917 |  |  |  |
Exercisable (in shares) | 780 | 780 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 52.4 |  |  |  |  |
Expiry date |  | Mar. 14, 2032 |  |  |  |
Stock options outstanding (in shares) | 917 | 917 |  |  |  |
Exercise Price Range Nine [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 7,646 |  |  |  |
Exercisable (in shares) | 6,500 | 6,500 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 52.4 |  |  |  |  |
Expiry date |  | Oct. 12, 2032 |  |  |  |
Stock options outstanding (in shares) | 7,646 | 7,646 |  |  |  |
Exercise Price Range Ten [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |  |
Outstanding (in shares) |  | 1,528 |  |  |  |
Exercisable (in shares) | 1,528 | 1,528 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Outstanding (in dollars per share) | $ / shares | $ 52.4 |  |  |  |  |
Expiry date |  | Feb. 06, 2033 |  |  |  |
Stock options outstanding (in shares) | 1,528 | 1,528 |  |  |  |
Option [Member] |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] |  |  |  |  |  |
Share-based payments | $ |  | $ 18,437 | $ 80,893 |  |  |

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