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Long-Term Debt And Note Payable To Bank (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Jul. 31, 2012
Aug. 31, 2012
May 30, 2008
Debt instrument, description of variable rate basis Advances under the Commercial Loan accrue interest at the greater of (x) LIBOR plus 2.0%, or (y) 3.0%    
Credit Facilities [Member]
     
Line of credit facility, maximum borrowing capacity     $ 17.0
Debt instrument, interest rate, stated percentage 5.85% 4.25%  
Debt instrument, maturity date Apr. 30, 2018    
Commercial Loan [Member]
     
Line of credit facility, amount outstanding 1.3    
Line of credit facility, remaining borrowing capacity 4.7    
Debt instrument, maturity date May 31, 2014    
Line of credit facility, maximum amount outstanding during period 6.0    
Debt instrument, interest rate, stated percentage rate range, maximum 3.00%    
Commercial Loan [Member] | Minimum [Member]
     
Debt instrument, basis spread on variable rate 2.00%    
Certain Receivables [Member]
     
Line of credit facility, maximum borrowing capacity, percentage of related category used for calculation 85.00%