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Income Taxes (Details) (USD $)
3 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Nov. 30, 2013
Income Tax Disclosure [Abstract]      
Income tax expense $ (200,000) $ (100,000)  
Unrecognized Tax Benefits 300,000    
Net Increase (reduction) in valuation allowance (4,400,000) (700,000)  
Net deferred tax assets 0   0
Valuation allowance 855,000,000   859,400,000
Total amount of unrecognized tax benefits, including interest and penalties 300,000    
Minimum [Member]
     
Income Tax Contingency [Line Items]      
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit 100,000    
Maximum [Member]
     
Income Tax Contingency [Line Items]      
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit $ 300,000