Annual report pursuant to Section 13 and 15(d)

Description of Business and Summary of Significant Accounting Policies - Calculation of Basic and Diluted Net Income Per Common Share (Detail)

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Description of Business and Summary of Significant Accounting Policies - Calculation of Basic and Diluted Net Income Per Common Share (Detail) - USD ($)
12 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Denominator:    
Weighted average common shares outstanding - basic 9,537,607 10,175,806
Dilutive common shares issuable upon exercise of stock options 257,972 253,229
Weighted-average shares-diluted 9,795,579 10,429,035
Income per share:    
Basic $ 0.85 $ 0.05
Diluted $ 0.83 $ 0.05
Net Income $ 8,106,343 $ 553,623