Note 8 - Other Intangible Assets, Net (Tables)

12 Months Ended

May 31, 2014

Disclosure Text Block [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

			As of May 31
			2014							2013
	Weighted Average Life (years)		Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Intangible assets subject to amortization:
Customer relationships		20	$	470,679		(63,989	)		406,690		465,909		(40,392	)		425,517
Existing technology / trade names		11		314,350		(71,246	)		243,104		291,250		(44,526	)		246,724
Corporate trade name		15		40,000		(7,421	)		32,579		40,000		(4,754	)		35,246
Below market leasehold interests		7		1,200		(449	)		751		1,200		(313	)		887
Other intangibles		4		399		(53	)		346		99		(20	)		79
Total amortizable assets				826,628		(143,158	)		683,470		798,458		(90,005	)		708,453
Intangible assets not subject to amortization:
In-process research and development				9,400		-			9,400		6,150		-			6,150
Total non-amortizable assets				9,400		-			9,400		6,150		-			6,150
Intangible assets, net			$	836,028		(143,158	)		692,870		804,608		(90,005	)		714,603

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

Year Ending May 31:
2015	54,772
2016	54,736
2017	54,580
2018	54,464
2019	50,541