Quarterly report pursuant to Section 13 or 15(d)

Net loss per share (Detail)

v2.4.0.6
Net loss per share (Detail)
3 Months Ended 6 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Jan. 31, 2013
Jan. 31, 2012
Unvested Restricted Stock [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 23,000 24,000 23,000 24,000
Outstanding Options [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 780,000 776,000 733,000 780,000