Loans Payable and Long-Term Debt	6 Months Ended
Loans Payable and Long-Term Debt	Oct. 31, 2014
Debt Disclosure [Abstract]
Loans Payable and Long-Term Debt	Loans Payable and Long-Term Debt Effective September 1, 2014, Wells Fargo amended the Company's credit facility to extend the maturity date for borrowings outstanding under the credit facility from December 31, 2015 to December 31, 2018; to provide that the line of credit is unsecured; to modify the interest on the outstanding principal balance of the note as either (i) a fluctuating rate per annum determined by Wells Fargo to be the daily one month LIBOR rate in effect from time to time plus the applicable margin, or (ii) a fixed rate per annum determined by Wells Fargo to be the index above LIBOR in effect on the first day of the applicable Fixed Rate Term; to lower the unused commitment fee from 0.30% to 0.15%; and to establish a requirement that the Company maintain a ratio of cash flow to fixed charges of not less than 1.5 to 1.0 measured at the end of each fiscal quarter on a rolling four-quarter basis. Under the terms of its revolving credit facility, the Company must also (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; and (2) comply with other customary affirmative and negative covenants. The Company was in compliance with all covenants specified in the credit facility as of October 31, 2014, including as follows: (1) the Company’s ratio of total liabilities to tangible net worth at October 31, 2014 was 0.7 to 1.0; and (2) cash flow to fixed charges for its most recent four quarters was 3.07 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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