Quarterly report pursuant to Section 13 or 15(d)

Income (Loss) Per Common Share - Calculation of Basic and Diluted Earnings (Loss) Per Share (Detail)

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Income (Loss) Per Common Share - Calculation of Basic and Diluted Earnings (Loss) Per Share (Detail) (USD $)
3 Months Ended 6 Months Ended
May 31, 2013
May 31, 2012
May 31, 2013
May 31, 2012
Numerator:        
Net (Loss) Income $ (243,658) $ (3,224,930) $ 348 $ (4,906,993)
Denominator:        
Weighted-average shares outstanding-basic 10,946,743 11,322,143 10,964,370 11,405,106
Dilutive common shares issuable upon exercise of stock options     118,194  
Weighted-average shares-diluted 10,946,743 11,322,143 11,082,564 11,405,106
Net (loss) income per common share:        
Basic $ (0.02) $ (0.28) $ 0.00 $ (0.43)
Diluted $ (0.02) $ (0.28) $ 0.00 $ (0.43)