Quarterly report pursuant to Section 13 or 15(d)

Share-based compensation (Detail) - Restricted stock awards

v2.4.0.6
Share-based compensation (Detail) - Restricted stock awards (USD $)
3 Months Ended
Oct. 31, 2012
Unvested Awards 257,583
Unvested Weighted Average Award Price (in Dollars per share) $ 3.58
Awarded 30,000
Awarded (in Dollars per share) $ 1.52
Vested (500)
Vested (in Dollars per share) $ (3.93)
Forfeited (3,292)
Forfeited (in Dollars per share) $ (5.13)
Unvested Awards 283,791
Unvested Weighted Average Award Price (in Dollars per share) $ 3.34