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Financing Arrangements (Details) (USD $)
0 Months Ended 6 Months Ended
Feb. 02, 2012
Apr. 30, 2013
Apr. 30, 2012
Oct. 31, 2012
Apr. 30, 2013
Second Amendment [Member]
Jan. 31, 2012
Revolving Credit Facility [Member]
Apr. 19, 2011
Revolving Credit Facility [Member]
Apr. 30, 2013
Revolving Credit Facility [Member]
Second Amendment [Member]
Dec. 26, 2012
Revolving Credit Facility [Member]
Second Amendment [Member]
Jul. 31, 2012
Notes Payable, Other Payables [Member]
Apr. 30, 2013
London Interbank Offered Rate [Member]
Minimum [Member]
Apr. 30, 2013
London Interbank Offered Rate [Member]
Maximum [Member]
Apr. 30, 2013
Lender's Base Rate [Member]
Minimum [Member]
Apr. 30, 2013
Effective April 1, 2013 [Member]
London Interbank Offered Rate [Member]
Minimum [Member]
Apr. 30, 2013
Effective April 1, 2013 [Member]
London Interbank Offered Rate [Member]
Maximum [Member]
Apr. 30, 2013
Effective April 1, 2013 [Member]
Lender's Base Rate [Member]
Minimum [Member]
Apr. 30, 2013
Effective April 1, 2013 [Member]
Lender's Base Rate [Member]
Maximum [Member]
Debt Instrument [Line Items]                                  
Credit Agreement Interest Rate:   2.08%   2.87%                          
Credit Agreement - interest at 2.08% at April 30, 2013 and 2.87% at October 31, 2012   $ 88,700,000   $ 21,150,000                          
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Consumer   0   (447,000)                          
Debt, Long-term and Short-term, Combined Amount   88,700,000   21,597,000 88,700,000                        
Debt, Current   0   447,000                          
Long-term Debt   88,700,000   21,150,000                          
Debt Instrument, Interest Rate During Period   1.90% 2.80%                            
Line of Credit Facility, Maximum Borrowing Capacity           80,000,000 80,000,000   120,000,000                
Line of Credit Increase Maximum             120,000,000   200,000,000                
Determination by the Admin Agent of the Lending Syndicate   51.00%                              
Dividends Payable, Date Declared Feb. 01, 2012                                
Debt Instrument, Basis Spread on Variable Rate                     1.50% 2.50% 0.00% 1.50% 2.50% 0.00% 1.00%
Line of Credit Facility, Covenant, Leverage Ratio, Minimum               2.25                  
Line of Credit Facility, Covenant, Leverage Ratio, Maximum               2.85                  
Line of Credit Facility, Covenant, Fixed Charge Ratio, Minimum               2.0                  
Letters of Credit Outstanding, Amount   1,748,000                              
Line of Credit Facility, Remaining Borrowing Capacity   29,552,000                              
Collateral Agreement   65.00%                              
Debt Instrument, Interest Rate, Stated Percentage                   2.53%              
Debt Instrument, Periodic Payment   $ 75,000