v3.26.1
Note 15 - Capital Management - Risk-based Capital Ratios (Details) - CAD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Apr. 30, 2026
Oct. 31, 2025
Apr. 30, 2025
Statement Line Items [Line Items]      
Directly issued capital instruments $ 331,264 $ 325,910 $ 329,799
Contributed surplus 980 2,473 2,540
Retained earnings 220,721 203,728 196,284
Accumulated other comprehensive income (loss) (727) 562 (317)
Regulatory capital   619,890  
Total risk-weighted assets   $ 3,943,657  
Capital ratio   15.72%  
Total assets 6,440,700 $ 5,808,475 $ 5,047,133
Tier 1 capital (24,480) (23,023)  
Replacement cost associated with all derivative transactions 7,216 0  
Add-on amounts for PFE associated with all derivative transactions 4,032 3,975  
Total derivative exposures 11,248 3,975  
Transitional [member]      
Statement Line Items [Line Items]      
Regulatory capital 631,623    
Total risk-weighted assets $ 4,285,370    
Capital ratio 14.74%    
Basel III [member]      
Statement Line Items [Line Items]      
Total assets $ 6,440,700 5,808,475  
Total on-balance sheet exposures 6,416,220 5,785,452  
Total off-balance sheet exposure at gross notional amount 612,630 635,854  
Adjustments for conversion to credit equivalent amount 392,992 410,571  
Total off-balance sheet exposures 219,638 225,283  
Total exposures $ 6,647,106 $ 6,014,710  
Leverage ratio 7.94% 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 $ 331,264    
Contributed surplus 980    
Retained earnings 220,721    
Accumulated other comprehensive income (loss) (727)    
Regulatory capital before adjustments 552,238    
Adjustments to capital (24,480)    
Regulatory capital $ 527,758    
Capital ratio 12.32%    
Capital Tier 1 [member]      
Statement Line Items [Line Items]      
Directly issued capital instruments   $ 0  
Regulatory capital $ 527,758 $ 509,650  
Capital ratio   12.92%  
Capital Tier 1 [member] | Transitional [member]      
Statement Line Items [Line Items]      
Directly issued capital instruments 0    
Regulatory capital $ 527,758    
Capital ratio 12.32%    
Tier 2 capital [member]      
Statement Line Items [Line Items]      
Directly issued capital instruments $ 102,180 $ 105,135  
Regulatory capital before adjustments   105,135  
Adjustments to capital   5,105  
Regulatory capital   $ 110,240  
Tier 2 capital [member] | Transitional [member]      
Statement Line Items [Line Items]      
Regulatory capital before adjustments 102,180    
Adjustments to capital 1,685    
Regulatory capital $ 103,865