Annual report pursuant to Section 13 and 15(d)

Retirement Plan (Details Textual)

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Retirement Plan (Details Textual) (USD $)
12 Months Ended
Nov. 30, 2012
Nov. 30, 2011
Retirement Plan (Textual) [Abstract]    
Amount allows under 401(k) retirement plan 15.00%  
Contribution to 401(k) retirement plan $ 68,000 $ 67,000