Fair Value Measurements (Tables)

9 Months Ended

Feb. 28, 2014

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

Our assets measured at fair value on a recurring basis were determined as follows:

	At February 28, 2014
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Balance
Assets
Money market funds	$	—	$	—	$	—	$	—
SERP
Money market fund	362		—		—		362
Mutual funds	2,992		—		—		2,992
Total assets measured at fair value	$	3,354	$	—	$	—	$	3,354
Liabilities
Foreign exchange forward contracts	$	—	$	25	$	—	$	25
Total liabilities measured at fair value	$	—	$	25	$	—	$	25

	At May 31, 2013
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Balance
Assets
Money market funds	$	14	$	—	$	—	$	14
SERP
Money market fund	113		—		—		113
Mutual funds	2,834		—		—		2,834
Foreign exchange forward contracts	—		114		—		114
Total assets measured at fair value	$	2,961	$	114	$	—	$	3,075