Note 7 - Intangible Assets (Tables)

6 Months Ended

Nov. 30, 2012

Schedule of Intangible Assets [Table Text Block]

		November 30, 2012							May 31, 2012
	Weighted Average Life (yrs)	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
		(in thousands)							(in thousands)
Intangible assets subject to amortization:
Customer relationships	20	$	451,358	$	(29,150	)	$	422,208	$	449,665	$	(17,799	)	$	431,866
Existing technology / trade names	11		266,000		(31,258	)		234,742		266,000		(19,076	)		246,924
Corporate trade name	15		40,000		(3,421	)		36,579		40,000		(2,088	)		37,912
Below market leasehold interests	5		860		(221	)		639		860		(135	)		725
Deferred licensing costs	6		99		(13	)		86		99		(4	)		95
Total amortizable assets			758,317		(64,063	)		694,254		756,624		(39,102	)		717,522
Intangible assets not subject to amortization:
In-process research and development			18,000		-			18,000		18,000		-			18,000
Total non-amortizable assets			18,000		-			18,000		18,000		-			18,000
Intangible assets, net		$	776,317	$	(64,063	)	$	712,254	$	774,624	$	(39,102	)	$	735,522

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Year Ending May 31:
2013	$	49,754
2014		49,754
2015		49,754
2016		49,754
2017		49,463