Derivative Liability (Details Narrative) - USD ($)					3 Months Ended		12 Months Ended
	Jul. 19, 2016	Apr. 23, 2016	Nov. 23, 2015	Oct. 23, 2015	Jul. 31, 2016	Jul. 31, 2012	Jul. 31, 2016	Jul. 31, 2015
Number of common stock shares issued during the period							13,906
Stock price					$ 1.01		$ 1.01
Warrant expiration warrant exercise price					$ 0.45		$ 0.45
Fair value assumption of historical stock price volatility							90.00%
Fair value assumption of risk free interest rate							1.00%
Fair value assumption of warrant expiration term							4 years 3 months 18 days
Proceeds from private placement
Warrants outstanding					7,056,426		7,056,426
Derivative liabilities					$ 1,802,000		$ 1,802,000	$ 4,000
Change in fair value of warrant liability							$ 5,481,000
Bridge Loan [Member]
Stock price					$ 1.01		$ 1.01
Warrant expiration warrant exercise price					$ 0.20		$ 0.20
Fair value assumption of historical stock price volatility					78.73%
Fair value assumption of risk free interest rate					0.20%
Fair value assumption of warrant expiration term					4 months 24 days
Warrants liabilities					$ 8,000		$ 8,000
Number of warrants issued for bridge loan financing						132,420
Warrants outstanding					9,709		9,709
Private Placement Financing [Member]
Number of warrants issued					20,376,219		20,376,219
Private Placement Financing [Member] | October Closing Date [Member]
Number of common stock shares issued during the period				13,333,333
Proceeds from private placement							$ 6,000,000
Other expenses							1,008,000
Private Placement Financing [Member] | October Closing Date [Member] | Five Years [Member]
Warrants to purchase of common stock shares				6,666,666
Warrant term				5 years
Fair value of warrants	$ 5,541,000			$ 4,034,000
Private Placement Financing [Member] | October Closing Date [Member] | Six Months [Member]
Warrants to purchase of common stock shares				8,666,666
Warrant term				6 months
Fair value of warrants		$ 6,067,000		$ 2,974,000			$ 2,820,670
Stock price					$ 1.01		$ 1.01
Warrant expiration warrant exercise price					$ 0.45		$ 0.45
Fair value assumption of historical stock price volatility							90.00%
Fair value assumption of risk free interest rate							1.00%
Fair value assumption of warrant expiration term							4 years 3 months 18 days
Warrants unexercise expiration date				Apr. 23, 2016
Fair value of warrants exercise return to additional paid in capital							$ 1,942,000
Private Placement Financing [Member] | November Closing Date [Member]
Number of common stock shares issued during the period			4,444,439
Fair value of warrants			$ 1,587,000				1,794,000
Fair value of warrants exercise return to additional paid in capital							1,271,000
Proceeds from private placement							2,000,000
Other expenses							$ 859,000
Private Placement Financing [Member] | November Closing Date [Member] | Five Years [Member]
Warrants to purchase of common stock shares			2,222,217
Warrant term			5 years
Private Placement Financing [Member] | November Closing Date [Member] | Six Months [Member]
Warrants to purchase of common stock shares			2,820,670
Warrant term			6 months