Note 5 - Credit Assets, Net of Allowance for Credit Losses - Expected Credit Loss Sensitivity (Details) - Loans [member] - Provision for credit commitments [member] - CAD ($) $ in Thousands |
Jul. 31, 2026 |
Oct. 31, 2025 |
Jul. 31, 2025 |
|---|---|---|---|
| Statement Line Items [Line Items] | |||
| Allowance for expected credit losses | $ 8,114 | $ 7,279 | $ 6,037 |
| Upside, 100% [member] | |||
| Statement Line Items [Line Items] | |||
| Allowance for expected credit losses | 7,553 | ||
| Provision (recovery) from reported ECL | $ (561) | ||
| Variance from reported ECL (%) | (7.00%) | ||
| Baseline, 100% [member] | |||
| Statement Line Items [Line Items] | |||
| Allowance for expected credit losses | $ 8,019 | ||
| Provision (recovery) from reported ECL | $ (95) | ||
| Variance from reported ECL (%) | (1.00%) | ||
| Downside, 100% [member] | |||
| Statement Line Items [Line Items] | |||
| Allowance for expected credit losses | $ 8,875 | ||
| Provision (recovery) from reported ECL | $ 761 | ||
| Variance from reported ECL (%) | 9.00% |