Quarterly report pursuant to Section 13 or 15(d)

Net loss per share (Details)

v2.4.0.8
Net loss per share (Details)
3 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Unvested Restricted Stock [Member]
   
Net loss per share (Details) [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 51,000 0
Outstanding Options [Member]
   
Net loss per share (Details) [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 723,000 686,000