Loans Payable and Long-Term Debt	3 Months Ended
Loans Payable and Long-Term Debt	Jul. 31, 2014
Debt Disclosure [Abstract]
Loans Payable and Long-Term Debt	Loans Payable and Long-Term Debt The Company’s outstanding indebtedness and other obligations to Wells Fargo are secured by substantially all of the Company’s assets. Under the terms of its revolving credit facility, the Company must: (1) maintain at the end of each fiscal quarter a ratio of total liabilities to tangible net worth of not greater than 1.4 to 1.0; (2) maintain at the end of each fiscal quarter a ratio of cash flow to fixed charges of not less than 1.25 to 1.0 measured on a rolling four-quarter basis; and (3) comply with other customary affirmative and negative covenants. The Company was in compliance with all covenants specified in the credit facility as of July 31, 2014, including as follows: (1) the Company’s ratio of total liabilities to tangible net worth at July 31, 2014 was 0.7 to 1.0; and (2) cash flow to fixed charges for its most recent four quarters was 3.18 to 1.0.

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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