Annual report pursuant to Section 13 and 15(d)

Accrued Liabilities (Details) - Schedule of Accrued liabilities

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Accrued Liabilities (Details) - Schedule of Accrued liabilities - USD ($)
$ in Thousands
Jul. 31, 2018
Jul. 31, 2017
Schedule of Accrued liabilities [Abstract]    
Payroll, benefits, severance and commissions $ 4,870 $ 4,092
Legal 2,121 442
Professional fees 811 599
Research and development   143
Other 2,252 1,444
Total $ 10,054 $ 6,720