Note 8 - Other Intangible Assets, Net (Tables)

9 Months Ended

Feb. 28, 2015

Disclosure Text Block [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

			As of
			February 28, 2015							May 31, 2014
	Weighted Average Life (years)		Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Other intangible assets subject to amortization:
Customer relationships		20	$	463,141		(80,356	)		382,785		470,679		(63,989	)		406,690
Existing technology / trade names		11		314,850		(92,480	)		222,370		314,350		(71,246	)		243,104
Corporate trade name		15		40,000		(9,421	)		30,579		40,000		(7,421	)		32,579
Below market leasehold interests		7		1,200		(535	)		665		1,200		(449	)		751
Other intangibles		4		429		(130	)		299		399		(53	)		346
Total amortizable assets				819,620		(182,922	)		636,698		826,628		(143,158	)		683,470
Other intangible assets not subject to amortization:
In-process research and development				27,700		-			27,700		9,400		-			9,400
Total non-amortizable assets				27,700		-			27,700		9,400		-			9,400
Other intangible assets, net			$	847,320		(182,922	)		664,398		836,028		(143,158	)		692,870

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

Year Ending May 31:
2015	$	13,663
2016		54,638
2017		54,481
2018		54,367
2019		50,443
2020		49,335