Note 7 - Other Intangible Assets (Tables)

9 Months Ended

Feb. 28, 2014

Disclosure Text Block [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

			As of
			February 28, 2014							May 31, 2013
	Weighted Average Life (years)		Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Intangible assets subject to amortization:
Customer relationships		20	$	470,876		(57,860	)		413,016		465,909		(40,392	)		425,517
Existing technology / trade names		11		291,250		(64,804	)		226,446		291,250		(44,526	)		246,724
Corporate trade name		15		40,000		(6,754	)		33,246		40,000		(4,754	)		35,246
Below market leasehold interests		8		1,200		(401	)		799		1,200		(313	)		887
Deferred licensing costs		6		199		(33	)		166		99		(20	)		79
Total amortizable assets				803,525		(129,852	)		673,673		798,458		(90,005	)		708,453
Intangible assets not subject to amortization:
In-process research and development				6,000		-			6,000		6,150		-			6,150
Total non-amortizable assets				6,000		-			6,000		6,150		-			6,150
Other intangible assets, net			$	809,525		(129,852	)		679,673		804,608		(90,005	)		714,603

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

2014	$	13,292
2015		53,160
2016		53,125
2017		52,968
2018		52,919
2019		48,997