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, unless otherwise specified
Apr. 30, 2014
Jul. 31, 2013
Accrued liabilities [Abstract]    
Payroll, benefits, and commissions $ 3,811 $ 4,794
Legal fee expense 3,344 3,104
Research and development 696 863
Professional fees 635 721
Other 2,474 2,294
$ 10,960 $ 11,776