Fair Value of Financial Instruments (Tables)

3 Months Ended

Oct. 31, 2017

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, 2017:

Fair Value of Significant Unobservable Inputs (Level 3)

	Warrant
	Liabilities
Balance at July 31, 2017	$	1,853,000
Issuances		—
Settlement of warrant liabilities		(1,394,000	)
Adjustments to estimated fair value		(459,000	)
Balance at October 31, 2017	$	—