Consolidated Statements of Comprehensive Loss (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2013	Nov. 30, 2012
NET LOSS	$ (787)	$ (10,399)	$ (8,547)	$ (21,034)
OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
Foreign currency translation adjustment	3,162	2,547	4,547	6,042
Changes in fair value of cash flow hedges:
Portion of cash flow hedges recognized in other comprehensive income	(180)	(101)	145	(354)
OTHER COMPREHENSIVE INCOME	2,982	2,446	4,692	5,688
COMPREHENSIVE INCOME (LOSS)	$ 2,195	$ (7,953)	$ (3,855)	$ (15,346)