Annual report pursuant to Section 13 and 15(d)

Property and Equipment (Details Textual)

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Property and Equipment (Details Textual) (USD $)
12 Months Ended
Nov. 30, 2012
Nov. 30, 2011
Property Plant and Equipment (Textual) [Abstract]    
Depreciation expense $ 393,000 $ 540,000
Depreciation amount included in cost of sales $ 210,000 $ 219,000