Note 18 - Income Taxes (Details) - Geographic Breakdown of (Loss) Income Before Income Taxes (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended		12 Months Ended
	Aug. 19, 2011	May 31, 2012	May 31, 2012	May 31, 2013	May 31, 2011
Note 18 - Income Taxes (Details) - Geographic Breakdown of (Loss) Income Before Income Taxes [Line Items]
(Loss) income before income taxes	$ (3,693)	$ (81,193)	$ (81,193)	$ (63,708)	$ 130,630
United States [Member]
Note 18 - Income Taxes (Details) - Geographic Breakdown of (Loss) Income Before Income Taxes [Line Items]
(Loss) income before income taxes	(10,820)		(69,012)	(74,451)	105,060
Foreign Countries [Member]
Note 18 - Income Taxes (Details) - Geographic Breakdown of (Loss) Income Before Income Taxes [Line Items]
(Loss) income before income taxes	$ 7,127		$ (12,181)	$ 10,743	$ 25,570