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 $)
6 Months Ended
Jan. 31, 2013
Unvested Awards 257,583
Unvested Weighted Average Award Price (in Dollars per share) $ 3.58
Awarded 32,000
Awarded (in Dollars per share) $ 1.60
Vested (97,137)
Vested (in Dollars per share) $ 2.89
Forfeited (3,291)
Forfeited (in Dollars per share) $ 5.13
Unvested Awards 189,155
Unvested Weighted Average Award Price (in Dollars per share) $ 3.57