v3.26.1
Note 15 - Capital Management - Risk-based Capital Ratios (Details) - CAD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Jul. 31, 2026
Oct. 31, 2025
Jul. 31, 2025
Statement Line Items [Line Items]      
Directly issued capital instruments $ 334,898 $ 325,910 $ 326,040
Contributed surplus 1,025 2,473 2,540
Retained earnings 229,972 203,728 200,409
Accumulated other comprehensive income (loss) (330) 562 (847)
Regulatory capital   619,890  
Total risk-weighted assets   $ 3,943,657  
Capital ratio   15.72%  
Total assets 6,875,238 $ 5,808,475 $ 5,477,489
Tier 1 capital (24,631) (23,023)  
Replacement cost associated with all derivative transactions 3,172 0  
Add-on amounts for PFE associated with all derivative transactions 4,131 3,975  
Total derivative exposures 7,303 3,975  
Transitional [member]      
Statement Line Items [Line Items]      
Regulatory capital 628,283    
Total risk-weighted assets $ 4,717,516    
Capital ratio 13.32%    
Basel III [member]      
Statement Line Items [Line Items]      
Total assets $ 6,875,238 5,808,475  
Total on-balance sheet exposures 6,850,607 5,785,452  
Total off-balance sheet exposure at gross notional amount 643,746 635,854  
Adjustments for conversion to credit equivalent amount 422,354 410,571  
Total off-balance sheet exposures 221,392 225,283  
Total exposures $ 7,079,302 $ 6,014,710  
Leverage ratio 7.64% 8.47%  
Common equity tier 1 [member]      
Statement Line Items [Line Items]      
Directly issued capital instruments   $ 325,910  
Contributed surplus   2,473  
Retained earnings   203,728  
Accumulated other comprehensive income (loss)   562  
Regulatory capital before adjustments   532,673  
Adjustments to capital   (23,023)  
Regulatory capital   $ 509,650  
Capital ratio   12.92%  
Common equity tier 1 [member] | Transitional [member]      
Statement Line Items [Line Items]      
Directly issued capital instruments $ 334,898    
Contributed surplus 1,025    
Retained earnings 229,972    
Accumulated other comprehensive income (loss) (330)    
Regulatory capital before adjustments 565,565    
Adjustments to capital (24,631)    
Regulatory capital $ 540,934    
Capital ratio 11.47%    
Capital Tier 1 [member]      
Statement Line Items [Line Items]      
Directly issued capital instruments   $ 0  
Regulatory capital $ 540,934 $ 509,650  
Capital ratio   12.92%  
Capital Tier 1 [member] | Transitional [member]      
Statement Line Items [Line Items]      
Directly issued capital instruments 0    
Regulatory capital $ 540,934    
Capital ratio 11.47%    
Tier 2 capital [member]      
Statement Line Items [Line Items]      
Directly issued capital instruments $ 83,034 $ 105,135  
Regulatory capital before adjustments 83,034 105,135  
Adjustments to capital   5,105  
Regulatory capital   $ 110,240  
Tier 2 capital [member] | Transitional [member]      
Statement Line Items [Line Items]      
Adjustments to capital 4,315    
Regulatory capital $ 87,349