Annual report pursuant to Section 13 and 15(d)

Employee benefit plan (Details) - Schedule of contrubutions plan

v3.5.0.2
Employee benefit plan (Details) - Schedule of contrubutions plan - USD ($)
$ in Thousands
12 Months Ended
Jul. 31, 2015
Jul. 31, 2014
Jul. 31, 2013
Schedule of contrubutions plan [Abstract]      
Contributions $ 224 $ 279 $ 467