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Debt (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended
Jul. 31, 2015
Jul. 31, 2015
Oct. 31, 2014
Apr. 15, 2014
Line of Credit Facility [Line Items]        
Line of Credit Facility, Interest Rate at Period End 4.00% 4.00%    
Provision to reduce borrowings under the line $ 6,000,000      
Provision to reduce borrowings under the line, period 60 days      
PNC [Member] | Revolving Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Remaining borrowing capacity $ 25,595,000 $ 25,595,000    
PNC [Member] | Revolving Credit Facility [Member] | Amendment No. 7 To The Credit Agreement [Member]        
Line of Credit Facility [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity       $ 50,000,000
Eurodollar [Member] | Minimum [Member]        
Line of Credit Facility [Line Items]        
Revolving credit facility bears interest range of     1.75%  
Eurodollar [Member] | Maximum [Member]        
Line of Credit Facility [Line Items]        
Revolving credit facility bears interest range of   2.75%    
Alternate Base Rate Loans [Member] | London Interbank Offered Rate LIBOR [Member] | Minimum [Member]        
Line of Credit Facility [Line Items]        
Revolving credit facility bears interest range of   0.75%    
Alternate Base Rate Loans [Member] | London Interbank Offered Rate LIBOR [Member] | Maximum [Member]        
Line of Credit Facility [Line Items]        
Revolving credit facility bears interest range of   1.75%