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Intangible Assets and Goodwill (Schedule Of Future Amortization Expense From Intangible Assets Held) (Details) (USD $)
In Thousands, unless otherwise specified
Feb. 28, 2013
Nov. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]    
Remainder of 2013 $ 1,478  
2014 1,245  
2015 849  
2016 345  
2017 345  
Thereafter 312  
Net Book Value $ 4,574 $ 5,119