Subsequent Events	3 Months Ended
Oct. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	13. Subsequent Events On November 23, 2015, we completed the second and final closing of a private placement financing (the “Private Placement Financing”). We raised $2.0 million in this final closing of (i) an aggregate of 4,444,439 shares (collectively, the “Purchase Shares”) of our common stock (the “Common Stock”) at a purchase price of $0.45 per share, (ii) warrants to purchase up to an aggregate of 2,222,217 shares of Common Stock with a term of five years (the “Five-Year Warrants”) and (iii) warrants to purchase up to an aggregate of 2,820,670 shares of Common Stock with a term of six months and only exercisable for cash (the “Six-Month Warrants”, together with the Five-Year Warrants, the “Warrants” and the shares issuable upon exercise of the Warrants, collectively, the “Warrant Shares”). The securities issued in the Private Placement Financing were issued pursuant to a Securities Purchase Agreement (the “Securities Purchase Agreement”) entered into with certain investors (the “Investors”). We completed the initial closing of the Private Placement Financing on October 23, 2015 for aggregate gross proceeds of $6.0 million and the aggregate gross proceeds in the initial and final closings of the Private Placement Financing are $8.0 million. We did not engage a placement agent or investment banker to facilitate the Private Placement Financing. We intend to use the aggregate net proceeds of the Private Placement Financing primarily for working capital and general corporate purposes. We offered the securities in the Private Placement Financing to the Company’s existing investors who previously purchased securities in our private placement financings in August and September of 2014 (the “Prior Financings”). The final closing in the Private Placement Financing was provided for and contemplated by the Securities Purchase Agreement entered into in connection with the initial closing. Tom Lee, a member of our board of directors and a participant in the Prior Financings, together with certain of his affiliates, invested approximately $472,000 in the final closing of the Private Placement Financing on the same terms offered to the other Investors. The Warrants have an exercise price of $0.45 per share, are exercisable immediately after their issuance and will have a term of exercise equal to the earlier of (i) five years or six months, for the Five-Year Warrants and Six-Month Warrants, respectively, after their issuance date or (ii) the consummation of an Acquisition Event (as defined in the Warrants). The Warrants are subject to a broad-based anti-dilution adjustment in the event the Company issues shares of Common Stock without consideration or for consideration per share less than the exercise price in effect immediately prior to such issuance; provided however, that such adjustment does not apply to an Excluded Issuance (as such term is defined in the Warrants). Additionally, the number of Warrant Shares issuable upon exercise of the Warrants and the applicable exercise price therefor are subject to adjustment in the event of a stock dividend, stock split or combination as set forth in the Warrants. We also entered into a registration rights agreement with the Investors (the “Registration Rights Agreement”), pursuant to which we will be obligated, upon request of Investors holding 75% of the Issuable Shares (as defined therein) and subject to certain conditions, to file with the Securities and Exchange Commission (the “Commission”) as soon as practicable, but in any event within 60 days after receiving such applicable request, a registration statement on Form S-1 (the “Resale Registration Statement”) to register the Purchase Shares and the Warrant Shares for resale under the Securities Act and other securities issued or issuable with respect to or in exchange for the Purchase Shares or Warrant Shares. We are obligated to use our commercially reasonable efforts to cause the Resale Registration Statement to be declared effective by the SEC as promptly as reasonably practicable after the filing of the Resale Registration Statement, but no monetary penalty or liquidated damages will be imposed upon the Company if the Registration Statement is not declared effective by the SEC.

13. Subsequent Events

On November 23, 2015, we completed the second and final closing of a private placement financing (the “Private Placement Financing”). We raised $2.0 million in this final closing of (i) an aggregate of 4,444,439 shares (collectively, the “Purchase Shares”) of our common stock (the “Common Stock”) at a purchase price of $0.45 per share, (ii) warrants to purchase up to an aggregate of 2,222,217 shares of Common Stock with a term of five years (the “Five-Year Warrants”) and (iii) warrants to purchase up to an aggregate of 2,820,670 shares of Common Stock with a term of six months and only exercisable for cash (the “Six-Month Warrants”, together with the Five-Year Warrants, the “Warrants” and the shares issuable upon exercise of the Warrants, collectively, the “Warrant Shares”). The securities issued in the Private Placement Financing were issued pursuant to a Securities Purchase Agreement (the “Securities Purchase Agreement”) entered into with certain investors (the “Investors”). We completed the initial closing of the Private Placement Financing on October 23, 2015 for aggregate gross proceeds of $6.0 million and the aggregate gross proceeds in the initial and final closings of the Private Placement Financing are $8.0 million. We did not engage a placement agent or investment banker to facilitate the Private Placement Financing. We intend to use the aggregate net proceeds of the Private Placement Financing primarily for working capital and general corporate purposes.

We offered the securities in the Private Placement Financing to the Company’s existing investors who previously purchased securities in our private placement financings in August and September of 2014 (the “Prior Financings”). The final closing in the Private Placement Financing was provided for and contemplated by the Securities Purchase Agreement entered into in connection with the initial closing. Tom Lee, a member of our board of directors and a participant in the Prior Financings, together with certain of his affiliates, invested approximately $472,000 in the final closing of the Private Placement Financing on the same terms offered to the other Investors.

The Warrants have an exercise price of $0.45 per share, are exercisable immediately after their issuance and will have a term of exercise equal to the earlier of (i) five years or six months, for the Five-Year Warrants and Six-Month Warrants, respectively, after their issuance date or (ii) the consummation of an Acquisition Event (as defined in the Warrants). The Warrants are subject to a broad-based anti-dilution adjustment in the event the Company issues shares of Common Stock without consideration or for consideration per share less than the exercise price in effect immediately prior to such issuance; provided however, that such adjustment does not apply to an Excluded Issuance (as such term is defined in the Warrants). Additionally, the number of Warrant Shares issuable upon exercise of the Warrants and the applicable exercise price therefor are subject to adjustment in the event of a stock dividend, stock split or combination as set forth in the Warrants.

We also entered into a registration rights agreement with the Investors (the “Registration Rights Agreement”), pursuant to which we will be obligated, upon request of Investors holding 75% of the Issuable Shares (as defined therein) and subject to certain conditions, to file with the Securities and Exchange Commission (the “Commission”) as soon as practicable, but in any event within 60 days after receiving such applicable request, a registration statement on Form S-1 (the “Resale Registration Statement”) to register the Purchase Shares and the Warrant Shares for resale under the Securities Act and other securities issued or issuable with respect to or in exchange for the Purchase Shares or Warrant Shares. We are obligated to use our commercially reasonable efforts to cause the Resale Registration Statement to be declared effective by the SEC as promptly as reasonably practicable after the filing of the Resale Registration Statement, but no monetary penalty or liquidated damages will be imposed upon the Company if the Registration Statement is not declared effective by the SEC.