- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

+ References+ Details

Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2012	May 31, 2012
Assets
Supplemental executive retirement plan	$ 2,784	$ 2,370
Fair Value, Measurements, Recurring [Member]
Assets
Total assets measured at fair value	2,837	5,056
Liabilities:
Total liabilities measured at fair value	141
Fair Value, Measurements, Recurring [Member] \| Foreign exchange forward contracts [Member]
Assets
Foreign exchange forward contracts		179
Liabilities:
Foreign exchange forward contracts	141
Fair Value, Measurements, Recurring [Member] \| Money market funds [Member]
Assets
Money market funds	53	2,507
Fair Value, Measurements, Recurring [Member] \| Supplemental executive retirement plan [Member]
Assets
Supplemental executive retirement plan	2,784	2,370
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Assets
Total assets measured at fair value	2,837	4,877
Liabilities:
Total liabilities measured at fair value
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Foreign exchange forward contracts [Member]
Liabilities:
Foreign exchange forward contracts
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Money market funds [Member]
Assets
Money market funds	53	2,507
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Supplemental executive retirement plan [Member]
Assets
Supplemental executive retirement plan	2,784	2,370
Significant Other Observable Inputs (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Assets
Total assets measured at fair value		179
Liabilities:
Total liabilities measured at fair value	141
Significant Other Observable Inputs (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Foreign exchange forward contracts [Member]
Assets
Foreign exchange forward contracts		179
Liabilities:
Foreign exchange forward contracts	141
Significant Other Observable Inputs (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Money market funds [Member]
Assets
Money market funds
Significant Other Observable Inputs (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Supplemental executive retirement plan [Member]
Assets
Supplemental executive retirement plan
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Assets
Total assets measured at fair value
Liabilities:
Total liabilities measured at fair value
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Foreign exchange forward contracts [Member]
Assets
Foreign exchange forward contracts
Liabilities:
Foreign exchange forward contracts
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Money market funds [Member]
Assets
Money market funds
Significant Unobservable Inputs (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Supplemental executive retirement plan [Member]
Assets
Supplemental executive retirement plan