Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities and Other Current Liabilities (Details) - Accrued liabilities

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Accrued Liabilities and Other Current Liabilities (Details) - Accrued liabilities - USD ($)
$ in Thousands
Apr. 30, 2016
Jul. 31, 2015
Accrued liabilities [Abstract]    
Payroll, benefits, and commissions $ 3,636 $ 3,907
Legal fee expense 1,770 4,183
Professional fees 576 678
Research and development 300 300
Other 1,774 2,229
$ 8,056 $ 11,297