Note 10 - Other Intangible Assets, Net (Tables)

12 Months Ended

May 31, 2016

Notes Tables

Schedule of Intangible Assets and Goodwill [Table Text Block]

			As of May 31
			2016							2015
	Weighted Average Life (years)		Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Other intangible assets subject to amortization:
Customer relationships		20	$	462,602		(109,260	)		353,342		462,534		(86,052	)		376,482
Existing technology / trade names		12		355,604		(128,530	)		227,074		314,850		(99,565	)		215,285
Corporate trade name		15		40,000		(12,754	)		27,246		40,000		(10,088	)		29,912
Below market leasehold interests		7		1,200		(631	)		569		1,200		(557	)		643
Other intangibles		4		428		(262	)		166		428		(156	)		272
Total amortizable assets				859,834		(251,437	)		608,397		819,012		(196,418	)		622,594
Intangible assets not subject to amortization:
In-process research and development				24,700		-			24,700		27,700		-			27,700
Total non-amortizable assets				24,700		-			24,700		27,700		-			27,700
Other intangible assets, net			$	884,534		(251,437	)		633,097		846,712		(196,418	)		650,294

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

Year Ending May 31:
2017	$	56,628
2018		56,513
2019		52,590
2020		51,482
2021		51,453