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 9 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Apr. 30, 2013
Apr. 30, 2012
Unvested Restricted Stock [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 17,000 31,000 0 55,000
Outstanding Options [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 726,000 776,000 731,000 779,000