Quarterly report pursuant to Section 13 or 15(d)

Income per Common Share - Calculation of Basic and Diluted Net Income Per Common Share (Detail)

v2.4.1.9
Income per Common Share - Calculation of Basic and Diluted Net Income Per Common Share (Detail) (USD $)
3 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Numerator:    
Net income $ 286,170us-gaap_NetIncomeLoss $ 397,112us-gaap_NetIncomeLoss
Denominator:    
Weighted average common shares outstanding - basic 9,824,566us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 10,690,188us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Dilutive common shares issuable upon exercise of stock options 234,083us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements 73,970us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted-average shares - diluted 10,058,649us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 10,764,158us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Earnings per share:    
Basic $ 0.03us-gaap_EarningsPerShareBasic $ 0.04us-gaap_EarningsPerShareBasic
Diluted $ 0.03us-gaap_EarningsPerShareDiluted $ 0.04us-gaap_EarningsPerShareDiluted