Note 6 - Property and Equipment, Net (Details) (USD $)	12 Months Ended		9 Months Ended	3 Months Ended	12 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2012 Successor [Member]	Aug. 19, 2011 Predecessor [Member]	May 31, 2013 Construction in Progress [Member]	May 31, 2014 Service Life [Member]
Note 6 - Property and Equipment, Net (Details) [Line Items]
Depreciation	$ 18,300,000	$ 21,000,000	$ 15,500,000	$ 3,400,000		$ (6,300,000)
Property, Plant and Equipment, Useful Life	10 years	5 years
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income						3,600,000
Gain (Loss) on Disposition of Assets		$ 1,175,000			$ (1,200,000)