Subsequent Events	12 Months Ended
Jul. 31, 2012
Subsequent Events [Abstract]
Subsequent Events	12. Subsequent Events Reverse Stock Split On August 13, 2012, we filed a Certificate of Amendment to our Certificate of Incorporation with the Secretary of State of the State of Delaware to effect a reverse stock split of our issued and outstanding common stock, $0.01 par value per share, at a ratio of one-for-eight. The reverse stock split was approved by stockholders holding a majority of our outstanding voting power at our annual meeting of stockholders held on July 31, 2012. The reverse stock split became effective as of the close of trading on August 14, 2012 and commenced trading on a post-reverse split basis as of the opening of trading on August 15, 2012, with each eight (8) issued and outstanding shares of our common stock automatically combined and converted into one (1) issued and outstanding share of our common stock. The reverse stock split affected all issued and outstanding shares of our common stock, as well as common stock underlying stock options, warrants, and convertible notes outstanding immediately prior to the effectiveness of the reverse stock split, but did not affect the number of authorized shares of our common stock. As a result of the reverse stock split, the number of outstanding shares of our common stock was reduced from approximately 57.8 million immediately prior to the effectiveness of the reverse stock split to approximately 7.2 million immediately thereafter. NASDAQ Delisting As previously disclosed in certain of our reports filed with the SEC, commencing in September 2011, we have received a series of deficiency letters from the NASDAQ Stock Market, or NASDAQ, and have undergone a lengthy appeal process with a NASDAQ Hearings Panel, or the Panel, relating to the potential delisting of our common stock from the NASDAQ Capital Market for noncompliance with several listing rules and standards. After receiving several letters from the Panel granting our continued listing contingent upon our satisfaction of certain specified conditions, on September 21, 2012, we received a final decision letter notifying us that the NASDAQ Listing Qualifications Staff had concluded that we had satisfied the required conditions and regained compliance with all applicable listing requirements, and accordingly had determined to continue the listing of our securities on the NASDAQ Capital Market and to close the matter of our delisting on that date. On October 1, 2012, we received a new deficiency letter from NASDAQ regarding our noncompliance with NASDAQ’s audit committee membership requirements as a result of the death of our former director and Audit Committee member Gregory Barnhill. Consistent with applicable NASDAQ listing rules, NASDAQ has granted us the following cure period to regain compliance with NASDAQ’s audit committee membership requirements: (i) until the earlier of our next annual meeting of stockholders or September 14, 2013, or (ii) if our next annual meeting of stockholders is held before March 13, 2013, until March 13, 2013. We intend to appoint an independent director who satisfies NASDAQ’s requirements for membership on our Audit Committee as promptly as practicable to rectify this noncompliance. Common Stock Financing — Underwritten Public Offering On September 17, 2012, we closed an underwritten public offering of an aggregate of 4,341,615 shares of our common stock, including shares issued pursuant to the exercise of the underwriter’s overallotment option, at a price to the public of $1.10 per share for net proceeds to us of approximately $4,313,000 (after deducting underwriting discounts and commissions and other offering expenses, although before payment of certain other legal and accounting expenses). The offering was made pursuant to our registration statement on Form S-3 (Registration No. 333-182475), which became effective on July 31, 2012, and a preliminary and final prospectus supplement filed with the Securities Exchange Commission on September 4, 2012 and September 13, 2012, respectively. The shares were sold pursuant to an underwriting agreement between us and Aegis Capital Corp., which was previously filed as an exhibit to our Current Report on Form 8-K filed on September 13, 2012. We intend to use the net proceeds from the offering for working capital and general corporate purposes. We also used the net proceeds from the offering to pay the full amount of the indebtedness we incurred in connection with the Bridge Loan, described in further detail under Note 4 above.

12. Subsequent Events

Reverse Stock Split

On August 13, 2012, we filed a Certificate of Amendment to our Certificate of Incorporation with the Secretary of State of the State of Delaware to effect a reverse stock split of our issued and outstanding common stock, $0.01 par value per share, at a ratio of one-for-eight. The reverse stock split was approved by stockholders holding a majority of our outstanding voting power at our annual meeting of stockholders held on July 31, 2012. The reverse stock split became effective as of the close of trading on August 14, 2012 and commenced trading on a post-reverse split basis as of the opening of trading on August 15, 2012, with each eight (8) issued and outstanding shares of our common stock automatically combined and converted into one (1) issued and outstanding share of our common stock. The reverse stock split affected all issued and outstanding shares of our common stock, as well as common stock underlying stock options, warrants, and convertible notes outstanding immediately prior to the effectiveness of the reverse stock split, but did not affect the number of authorized shares of our common stock. As a result of the reverse stock split, the number of outstanding shares of our common stock was reduced from approximately 57.8 million immediately prior to the effectiveness of the reverse stock split to approximately 7.2 million immediately thereafter.

NASDAQ Delisting

As previously disclosed in certain of our reports filed with the SEC, commencing in September 2011, we have received a series of deficiency letters from the NASDAQ Stock Market, or NASDAQ, and have undergone a lengthy appeal process with a NASDAQ Hearings Panel, or the Panel, relating to the potential delisting of our common stock from the NASDAQ Capital Market for noncompliance with several listing rules and standards. After receiving several letters from the Panel granting our continued listing contingent upon our satisfaction of certain specified conditions, on September 21, 2012, we received a final decision letter notifying us that the NASDAQ Listing Qualifications Staff had concluded that we had satisfied the required conditions and regained compliance with all applicable listing requirements, and accordingly had determined to continue the listing of our securities on the NASDAQ Capital Market and to close the matter of our delisting on that date.

On October 1, 2012, we received a new deficiency letter from NASDAQ regarding our noncompliance with NASDAQ’s audit committee membership requirements as a result of the death of our former director and Audit Committee member Gregory Barnhill. Consistent with applicable NASDAQ listing rules, NASDAQ has granted us the following cure period to regain compliance with NASDAQ’s audit committee membership requirements: (i) until the earlier of our next annual meeting of stockholders or September 14, 2013, or (ii) if our next annual meeting of stockholders is held before March 13, 2013, until March 13, 2013. We intend to appoint an independent director who satisfies NASDAQ’s requirements for membership on our Audit Committee as promptly as practicable to rectify this noncompliance.

Common Stock Financing — Underwritten Public Offering

On September 17, 2012, we closed an underwritten public offering of an aggregate of 4,341,615 shares of our common stock, including shares issued pursuant to the exercise of the underwriter’s overallotment option, at a price to the public of $1.10 per share for net proceeds to us of approximately $4,313,000 (after deducting underwriting discounts and commissions and other offering expenses, although before payment of certain other legal and accounting expenses). The offering was made pursuant to our registration statement on Form S-3 (Registration No. 333-182475), which became effective on July 31, 2012, and a preliminary and final prospectus supplement filed with the Securities Exchange Commission on September 4, 2012 and September 13, 2012, respectively. The shares were sold pursuant to an underwriting agreement between us and Aegis Capital Corp., which was previously filed as an exhibit to our Current Report on Form 8-K filed on September 13, 2012. We intend to use the net proceeds from the offering for working capital and general corporate purposes. We also used the net proceeds from the offering to pay the full amount of the indebtedness we incurred in connection with the Bridge Loan, described in further detail under Note 4 above.