Note 13 - Share-Based Compensation (Detail) - Stock Option Activity (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	May 31, 2012		Nov. 30, 2012
Stock Options [Member]
Outstanding at May 31, 2012	139,779
Outstanding at May 31, 2012 (in Dollars per share)	$ 100.00
Outstanding at May 31, 2012 (in Dollars)				[1]
Granted	5,000
Granted (in Dollars per share)	$ 100.00
Exercised	0
Exercised (in Dollars per share)	$ 0
Forfeited	(1,200)
Forfeited (in Dollars per share)	$ 100.00
Expired	(160)
Expired (in Dollars per share)	$ 100.00
Outstanding at August 20, 2011	143,419
Outstanding at August 20, 2011 (in Dollars per share)	$ 100.00
Outstanding at August 20, 2011	9 years 36 days
Outstanding at August 20, 2011 (in Dollars)				[1]
Exercisable at May 31, 2012	0
Exercisable at May 31, 2012 (in Dollars per share)	$ 0
Exercisable at May 31, 2012	0 years
Exercisable at May 31, 2012 (in Dollars)			0	[1]
Performance Based Options [Member]
Outstanding at May 31, 2012	135,779
Outstanding at May 31, 2012 (in Dollars per share)	$ 100.00
Outstanding at May 31, 2012 (in Dollars)				[1]
Granted	5,000
Granted (in Dollars per share)	$ 100.00
Exercised	0
Exercised (in Dollars per share)	$ 0
Exercised	0 years
Exercised (in Dollars)			0	[1]
Forfeited	(1,500)
Expired	0
Expired (in Dollars per share)	$ 0
Outstanding at August 20, 2011	139,279
Outstanding at August 20, 2011 (in Dollars per share)	$ 100.00
Outstanding at August 20, 2011	9 years 36 days
Outstanding at August 20, 2011 (in Dollars)	0	[1]		[1]
Exercisable at May 31, 2012	0
Exercisable at May 31, 2012 (in Dollars per share)	$ 0
Exercisable at May 31, 2012	0 years
Exercisable at May 31, 2012 (in Dollars)			$ 0	[1]

[1] The aggregate intrinsic value in the above table represents the total pre-tax amount that a participant would receive if the option had been exercised on the last day of the respective fiscal period. Options that are underwater are not included in the intrinsic value amount.