Earnings Per Share - Reconciliation of Income from Operations Applicable to Common Shares and Computation of Diluted Weighted Average Shares Outstanding (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
May 31, 2014
May 31, 2013
May 31, 2014
May 31, 2013
Numerator:        
Net income $ 3,071 $ 2,058 $ 4,798 $ 4,956
Less: Allocation to participating securities (16) (4) (14) (15)
Net income applicable to common shares $ 3,055 $ 2,054 $ 4,784 $ 4,941
Denominator:        
Weighted average common shares outstanding, basic 12,532 12,395 12,502 12,349
Dilutive stock options and awards 343 275 345 199
Weighted average common shares outstanding, diluted 12,875 12,670 12,847 12,548