Fair Value of Financial Instruments (Tables)

3 Months Ended

Oct. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Derivative Liabilities at Fair Value

The following table provides a reconciliation of the beginning and ending balances of the derivative liabilities for the three months ended October 31, 2016:

Fair Value of Significant Unobservable Inputs (Level 3)

	Warrant
	Liabilities
Balance at July 31, 2015	$	4,000
Issuances		9,867,000
Settlement of warrant liabilities		(13,550,000	)
Adjustments to estimated fair value		5,481,000
Balance at July 31, 2016	$	1,802,000
Issuances		—
Settlement of warrant liabilities		—
Adjustments to estimated fair value		159,000
Balance at October 31, 2016	$	1,961,000