Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2015	Aug. 31, 2014
NET SALES	$ 96,712	$ 102,441
COST OF SALES (exclusive of amortization shown separately below)	34,642	36,827
GROSS PROFIT	62,070	65,614
OPERATING EXPENSES
Research and development	6,830	7,078
Selling and marketing	13,987	15,056
Distribution	4,419	5,040
General and administrative	10,746	10,884
Amortization expense	13,578	13,682
Total operating expenses	49,560	51,740
INCOME FROM OPERATIONS	12,510	13,874
NON-OPERATING (EXPENSE) INCOME
Interest income	42	56
Interest expense	(22,492)	(22,298)
Other, net	(127)	76
Total non-operating net expense	(22,577)	(22,166)
LOSS BEFORE INCOME TAXES	(10,067)	(8,292)
BENEFIT FOR INCOME TAXES	(2,850)	(2,813)
NET LOSS	$ (7,217)	$ (5,479)