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Fair Value of Financial Instruments (Details)
3 Months Ended
Oct. 31, 2015
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Beginning balance $ 4,000
Ending balance 6,969,000
Warrant [Member]  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Beginning balance 4,000
Issuances 7,008,000
Adjustments to estimated fair value (43,000)
Ending balance $ 6,969,000