Notes Payable	3 Months Ended
Apr. 30, 2012
Notes Payable [Abstract]
Notes Payable	Note 4 – Notes Payable The Company has a financing agreement with JPMorgan Chase Bank, N.A., as agent for a consortium of banks. The Company’s financing agreement, which extends through July 31, 2013, is a senior secured revolving credit facility providing for borrowings in the aggregate principal amount of up to $300 million. Borrowings under this credit facility bear interest, at the Company’s option, at the prime rate plus 0.50% or LIBOR plus 2.75%. Amounts available under this facility are subject to borrowing base formulas and over advances as specified in the financing agreement. The fair value of debt approximates carrying value and would be considered a level 2 fair value measurement. The financing agreement requires the Company, among other things, to maintain a maximum senior leverage ratio and minimum fixed charge coverage ratio, as defined, and also limits payments for cash dividends and stock redemptions. As of April 30, 2012, the Company was in compliance with these covenants. The financing agreement is secured by all of the Company’s assets. Amounts payable under the Company’s revolving credit facility were $83.1 million and $35.0 million at April 30, 2012 and 2011, respectively.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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