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Note 9 - Mortgage Loans Held for Sale (Tables)
 6 Months Ended
Apr. 30, 2016
Notes Tables  
Allowance for Credit Losses on Financing Receivables [Table Text Block]
   
Three Months Ended
April 30,
    
Six Months Ended
April 30,
  
(In thousands)
  
2016
    
2015
    
2016
    
2015
  
                                 
Loan origination reserves, beginning of period
     $8,028       $7,981       $8,025       $7,352  
Provisions for losses during the period
     117       68       158       129  
Adjustments to pre-existing provisions for losses from changes in estimates
     161       (107
)
     123       461  
Loan origination reserves, end of period
     $8,306       $7,942       $8,306       $7,942