Note 12 - Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Nov. 30, 2013

Note 12 - Accumulated Other Comprehensive Loss (Tables) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	As of
	November 30, 2013			May 31, 2013
Cumulative foreign currency translation adjustment	$	(12,195	)		(16,742	)
Change in fair value of cash flow hedges, net of tax		(1,035	)		(1,180	)
Accumulated other comprehensive loss	$	(13,230	)		(17,922	)

PreTax, Tax, and After Tax [Member]

Note 12 - Accumulated Other Comprehensive Loss (Tables) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Pretax			Tax			After Tax
Six Months Ended November 30, 2013
Foreign exchange translation adjustment	$	4,547			-			4,547
Changes in fair value of cash flow hedges		204			59			145
	$	4,751			59			4,692
Six Months Ended November 30, 2012
Foreign exchange translation adjustment	$	6,042			-			6,042
Changes in fair value of cash flow hedges		(470	)		(116	)		(354	)
	$	5,572			(116	)		5,688