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Note 9 - Mortgage Loans Held for Sale (Tables)
 9 Months Ended
Jul. 31, 2017
Notes Tables  
Allowance for Credit Losses on Financing Receivables [Table Text Block]
   
Three Months Ended
July 31,
    
Nine Months Ended
July 31,
  
(In thousands)
  
2017
    
2016
    
2017
    
2016
  
                                 
Loan origination reserves, beginning of period
   $
3,782
     $
8,306
     $
8,137
     $
8,025
  
Provisions for losses during the period
   $
41
      
45
     $
120
      
203
  
Adjustments to pre-existing provisions for losses from changes in estimates
    
(51
)
    
(27
)
   $
(4,485
 )    
96
  
Payments/settlements
    
 
      
(197
)
    
 
      
(197
)
Loan origination reserves, end of period
   $
3,772
     $
8,127
     $
3,772
     $
8,127