Note 6 - Intangible Assets (Detail) - Other Intangible Assets (USD $) In Thousands, unless otherwise specified																																																					3 Months Ended
	Aug. 31, 2012	May 31, 2012	Aug. 31, 2012 Cost [Member] Successor [Member] In-process research and development [Member]	Aug. 31, 2012 Cost [Member] Successor [Member] Non-amortizable assets [Member]	Aug. 31, 2012 Cost [Member] Successor [Member] Other Intangible Assets [Member]	Aug. 31, 2012 Cost [Member] Successor [Member] Customer Lists [Member]	Aug. 31, 2012 Cost [Member] Successor [Member] Existing technology and trade names [Member]	Aug. 31, 2012 Cost [Member] Successor [Member] Corporate trade name [Member]	Aug. 31, 2012 Cost [Member] Successor [Member] Below market leasehold interests [Member]	Aug. 31, 2012 Cost [Member] Successor [Member] Deferred licensing costs [Member]	Aug. 31, 2012 Cost [Member] Successor [Member]	May 31, 2012 Cost [Member] Predecessor [Member] In-process research and development [Member]	May 31, 2012 Cost [Member] Predecessor [Member] Non-amortizable assets [Member]	May 31, 2012 Cost [Member] Predecessor [Member] Other Intangible Assets [Member]	May 31, 2012 Cost [Member] Predecessor [Member] Customer Lists [Member]	May 31, 2012 Cost [Member] Predecessor [Member] Existing technology and trade names [Member]	May 31, 2012 Cost [Member] Predecessor [Member] Corporate trade name [Member]	May 31, 2012 Cost [Member] Predecessor [Member] Below market leasehold interests [Member]	May 31, 2012 Cost [Member] Predecessor [Member] Deferred licensing costs [Member]	May 31, 2012 Cost [Member] Predecessor [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member] In-process research and development [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member] Non-amortizable assets [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member] Other Intangible Assets [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member] Customer Lists [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member] Existing technology and trade names [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member] Corporate trade name [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member] Below market leasehold interests [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member] Deferred licensing costs [Member]	Aug. 31, 2012 Net of Accumulated Amortization [Member] Successor [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member] In-process research and development [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member] Non-amortizable assets [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member] Other Intangible Assets [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member] Customer Lists [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member] Existing technology and trade names [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member] Corporate trade name [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member] Below market leasehold interests [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member] Deferred licensing costs [Member]	May 31, 2012 Net of Accumulated Amortization [Member] Predecessor [Member]	Aug. 31, 2012 Successor [Member] Other Intangible Assets [Member]	Aug. 31, 2012 Successor [Member] Customer Lists [Member]	Aug. 31, 2012 Successor [Member] Existing technology and trade names [Member]	Aug. 31, 2012 Successor [Member] Corporate trade name [Member]	Aug. 31, 2012 Successor [Member] Below market leasehold interests [Member]	Aug. 31, 2012 Successor [Member] Deferred licensing costs [Member]	Aug. 31, 2012 Successor [Member]	May 31, 2012 Predecessor [Member] Other Intangible Assets [Member]	May 31, 2012 Predecessor [Member] Customer Lists [Member]	May 31, 2012 Predecessor [Member] Existing technology and trade names [Member]	May 31, 2012 Predecessor [Member] Corporate trade name [Member]	May 31, 2012 Predecessor [Member] Below market leasehold interests [Member]	May 31, 2012 Predecessor [Member] Deferred licensing costs [Member]	May 31, 2012 Predecessor [Member]	Aug. 31, 2012 Customer Lists [Member]	Aug. 31, 2012 Existing technology and trade names [Member]	Aug. 19, 2011 Existing technology and trade names [Member]	Aug. 31, 2012 Corporate trade name [Member]	Aug. 19, 2011 Corporate trade name [Member]	Aug. 31, 2012 Below market leasehold interests [Member]	Aug. 19, 2011 Below market leasehold interests [Member]	Aug. 31, 2012 Deferred licensing costs [Member]
Intangible assets subject to amortization - weighted average life																																																					20 years	11 years	11 years	15 years	15 years	5 years	5 years	6 years
Intangible assets subject to amortization - cost						$ 450,692	$ 266,000	$ 40,000	$ 860	$ 99	$ 757,651				$ 449,665	$ 266,000	$ 40,000	$ 860	$ 99	$ 756,624
Intangible assets subject to amortization - accumulated amortization																																							(51,581)	(23,474)	(25,167)	(2,754)	(178)	(8)	(51,581)	(39,102)	(17,799)	(19,076)	(2,088)	(135)	(4)	(39,102)
Intangible assets subject to amortization - net		706,070																						427,218	240,833	37,246	682	91	706,070				431,866	246,924	37,912	725	95	717,522
Intangible assets not subject to amortization - cost			18,000	18,000								18,000	18,000
Intangible assets not subject to amortization - net	724,070	735,522			775,651									774,624							18,000	18,000	724,070							18,000	18,000	735,522
Intangible assets, net	724,070	735,522			775,651									774,624							18,000	18,000	724,070							18,000	18,000	735,522
Intangible assets, net																																							(51,581)	(23,474)	(25,167)	(2,754)	(178)	(8)	(51,581)	(39,102)	(17,799)	(19,076)	(2,088)	(135)	(4)	(39,102)
Intangible assets, net	$ 724,070	$ 735,522			$ 775,651									$ 774,624							$ 18,000	$ 18,000	$ 724,070							$ 18,000	$ 18,000	$ 735,522