Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014
NET SALES	$ 96,249	$ 96,277	$ 192,961	$ 198,717
COST OF SALES (exclusive of amortization shown separately below)	37,888	35,773	72,529	72,600
GROSS PROFIT	58,361	60,504	120,432	126,117
OPERATING EXPENSES:
Research and development	6,760	7,115	13,590	14,194
Selling and marketing	14,819	15,373	28,806	30,429
Distribution	4,395	5,316	8,814	10,356
General and administrative	10,608	10,698	21,354	21,581
Amortization expense	13,591	13,651	27,169	27,332
Total operating expenses	50,173	52,153	99,733	103,892
INCOME FROM OPERATIONS	8,188	8,351	20,699	22,225
NON-OPERATING (EXPENSE) INCOME:
Interest income	41	32	83	88
Interest expense	(22,454)	(22,822)	(44,946)	(45,120)
Other, net	78	214	(50)	289
Total non-operating net expense	(22,335)	(22,576)	(44,913)	(44,743)
LOSS BEFORE INCOME TAXES	(14,147)	(14,225)	(24,214)	(22,518)
BENEFIT FOR INCOME TAXES	(2,351)	(5,148)	(5,201)	(7,961)
NET LOSS	(11,796)	(9,077)	(19,013)	(14,557)
NET SALES	96,249	96,277	192,961	198,717
COST OF SALES (exclusive of amortization shown separately below)	37,888	35,773	72,529	72,600
GROSS PROFIT	$ 58,361	$ 60,504	$ 120,432	$ 126,117