- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References+ Details

Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified									3 Months Ended
	Jul. 31, 2014	Apr. 30, 2014	Feb. 21, 2014	Nov. 04, 2008	Jul. 31, 2014 Unused lines of Credit	Apr. 30, 2014 Unused lines of Credit	Jul. 31, 2014 Revolving Credit Facility Amendment Five	Jul. 31, 2014 Combined Letter Of Credit And Credit Card Services Sub facility	Jul. 31, 2014 Line of Credit	Jul. 31, 2014 Line of Credit Daily adjusting LIBOR rate	Jul. 31, 2014 Line of Credit Amendment Agreement
Debt Instrument [Line Items]
Revolving line of credit with a borrowing capacity							$ 30.0	$ 2.7
Line of credit facility current borrowing capacity percentage							100.00%
Loan and security agreement, issue date									Jul. 18, 2007		Jun. 30, 2013
Loan and security agreement, expiration date									Jan. 31, 2015
Interest above daily adjusting LIBOR rate										2.50%
Letter of credit drawn	1.6	1.6		0.5
Revolving line of credit drawn			27.0
Unused revolving line of credit					$ 1.4	$ 1.4