Annual report pursuant to Section 13 and 15(d)

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

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Accrued Liabilities, Other Current Liabilities and Other Liabilities (Details) - Other current liabilities (USD $)
In Thousands, unless otherwise specified
Jul. 31, 2014
Jul. 31, 2013
Accrued Liabilities, Other Current Liabilities and Other Liabilities (Details) - Other current liabilities [Line Items]    
Other Liabilities Current $ 790 $ 331
Accrued Legal Settlement [Member]
    
Accrued Liabilities, Other Current Liabilities and Other Liabilities (Details) - Other current liabilities [Line Items]    
Other Liabilities Current 400  
Installment Loans [Member]
    
Accrued Liabilities, Other Current Liabilities and Other Liabilities (Details) - Other current liabilities [Line Items]    
Other Liabilities Current 241 182
Capital Lease Obligations [Member]
    
Accrued Liabilities, Other Current Liabilities and Other Liabilities (Details) - Other current liabilities [Line Items]    
Other Liabilities Current $ 149 $ 149