Note 13 - Accumulated Other Comprehensive (Loss) Income (Tables)

3 Months Ended

Aug. 31, 2015

Disclosure Text Block [Abstract]

Comprehensive Income (Loss) [Table Text Block]

	Pretax			Tax			After Tax
Three Months Ended August 31, 2015
Foreign exchange translation adjustment	$	(29	)		(51	)		22
Changes in fair value of cash flow hedges		180			120			60
	$	151			69			82
Three Months Ended August 31, 2014
Foreign exchange translation adjustment	$	(4,340	)		25			(4,365	)
Changes in fair value of cash flow hedges		248			131			117
	$	(4,092	)		156			(4,248	)

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

	As of
	August 31, 2015			May 31, 2015
Cumulative foreign currency translation adjustment	$	(39,117	)		(39,139	)
Change in fair value of cash flow hedges, net of tax		(365	)		(425	)
Accumulated other comprehensive loss	$	(39,482	)		(39,564	)