Note 11 - Asset Disposition and Accured Lease Exit Costs (Details) - Activity Related to Our Accrued Lease Exit Costs (USD $) In Thousands, unless otherwise specified	6 Months Ended
	May 31, 2014	Nov. 30, 2013
Activity Related to Our Accrued Lease Exit Costs [Abstract]
Accrued lease exit costs	$ 533	$ 907
Current portion included in other accrued liabilities	162
Long-term portion included in other long-term liabilities	371
	533
Payments on unexpired leases	(402)
Accretion of interest on obligations and other	$ 28