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 (Loss) per Common Share (Detail)

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Description of Business and Summary of Significant Accounting Policies - Calculation of Basic and Diluted Net Income (Loss) per Common Share (Detail) - USD ($)
12 Months Ended
Nov. 30, 2017
Nov. 30, 2016
Denominator:    
Weighted-average shares outstanding-basic 7,062,870 8,112,791
Dilutive common shares issuable upon exercise of stock options 590,114  
Weighted-average shares-diluted 7,652,984 8,112,791
Income (loss) per share:    
Basic $ 0.33 $ (0.16)
Diluted $ 0.30 $ (0.16)
Net income (loss) $ 2,315,100 $ (1,320,800)