Quarterly report pursuant to Section 13 or 15(d)

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

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Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities - USD ($)
$ in Thousands
Apr. 30, 2016
Jul. 31, 2015
Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities [Line Items]    
Other current liabilities $ 2,464 $ 886
Accrued Legal Settlement [Member]    
Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities [Line Items]    
Other current liabilities 1,909 406
Capital Lease Obligations [Member]    
Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities [Line Items]    
Other current liabilities 298 149
Installment Loans [Member]    
Accrued Liabilities and Other Current Liabilities (Details) - Other current liabilities [Line Items]    
Other current liabilities $ 257 $ 331