Stockholders' Equity | NOTE 6 — STOCKHOLDERS’ EQUITY Authorized Shares On September 15, 2017, the Company amended its Amended and Restated Certificate of Incorporation to authorize the issuance of up to 225,000,000 shares of common stock, $0.001 par value per share, and 15,000,000 shares of preferred stock, $0.001 par value per share. As of September 30, 2017, the Company had 14,756,521 shares of common stock issued and outstanding. Each share of the Company’s common stock is entitled to one vote, and all shares rank equally as to voting and other matters. There are currently no shares of preferred stock issued and outstanding. Any preferred stock issued in the future will have the rights, preferences and privileges that the Company’s Board of Directors may determine from time to time. Aspire Capital Financing Arrangement On December 18, 2015, the Company entered into a common stock purchase agreement (the “2015 Aspire Purchase Agreement”) with Aspire Capital Fund, LLC (“Aspire Capital”), pursuant to which Aspire Capital was committed to purchase up to an aggregate of $10.0 million of the Company’s shares of common stock over the approximate 30-month term of the 2015 Aspire Purchase Agreement. As of September 30, 2017, the Company had issued an aggregate of 4,577,699 shares of its common stock to Aspire Capital under the 2015 Aspire Purchase Agreement for approximate proceeds of $5.0 million. On May 4, 2017, the Company terminated the 2015 Aspire Purchase Agreement and entered into a new common stock purchase agreement with Aspire Capital (the “2017 Aspire Purchase Agreement”), which provides that upon the terms and conditions set forth therein, Aspire Capital is committed to purchase up to an aggregate of $6.5 million of shares of the Company’s common stock over the 30-month term of the 2017 Aspire Purchase Agreement. On any trading day on which the closing sale price of the Company’s common stock exceeds $0.25, the Company has the right, in its sole discretion, to present Aspire Capital with a purchase notice, directing Aspire Capital (as principal) to purchase up to 100,000 shares of the Company’s common stock per trading day, for up to $6.5 million of the Company’s common stock in the aggregate at a per share price, calculated by reference to the prevailing market price of the Company’s common stock (as provided in the 2017 Aspire Purchase Agreement). As a condition to the 2017 Aspire Purchase Agreement, the Company issued 137,324 shares of its common stock to Aspire Capital as a commitment fee. As of the date of this Quarterly Report, no shares of common stock have been sold to Aspire Capital under the 2017 Aspire Purchase Agreement. October 2016 Public Offering On October 31, 2016, the Company closed a public offering, selling 2,127,660 shares of the Company’s common stock at a price to the public of $2.35 per share, for aggregate gross proceeds to the Company of approximately $5.0 million. The Company paid to the underwriters underwriting discounts and commissions of approximately $0.4 million in connection with the offering, and approximately $0.2 million of other expenses in connection with the offering. This offering was made pursuant to a shelf registration statement on Form S-3, which was declared effective by the SEC on August 23, 2016. The shelf registration statement allows the Company to issue, from time to time at prices and on terms to be determined at or prior to the time of an offering, up to $150,000,000 of any combination of an indeterminate number of shares of common stock, an indeterminate number of shares of preferred stock, an indeterminate principal amount of debt securities, an indeterminate number of warrants, rights and purchase contracts to purchase common stock or debt securities, and an indeterminate number of units. If any debt securities are issued at an original issue discount, then the offering price of such debt securities shall be in such greater principal amount as shall result in an aggregate offering price not to exceed $150,000,000, less the aggregate dollar amount of all securities previously issued hereunder. The securities registered also include such indeterminate number of shares of common stock and preferred stock that may be issued upon conversion or exchange of convertible or exchangeable securities being registered or pursuant to the anti-dilution provisions of any such securities. October 2017 Public Offering On October 3, 2017, the Company closed a public offering, selling an aggregate of (i) 34,550,000 Class A Units consisting of 34,550,000 shares of the Company’s common stock and warrants to purchase 34,550,000 shares of the Company’s common stock at a public offering price of $0.40 per unit, and (ii) 9,180 Class B Units consisting of 9,180 shares of Series A Convertible Preferred Stock, with a stated value of $1,000 per unit, and convertible into an aggregate of 22,950,000 shares of the Company’s common stock, and warrants to purchase an aggregate of 22,950,000 shares of the Company’s common stock. The warrants have an exercise price of $0.44, are exercisable upon issuance and expire five years from the date of issuance. The Company granted the underwriters a 45-day option to purchase an additional 8,625,000 shares of the Company’s common stock and/or warrants to purchase an additional 8,625,000 shares of the Company’s common stock. As of the closing of the offering, the underwriters have exercised their over-allotment option for warrants to purchase 2,975,000 shares of the Company’s common stock. Aggregate gross proceeds to the Company from the public offering were approximately $23.0 million. The Company paid to the underwriters underwriting discounts and commissions of approximately $1.6 million in connection with the offering, and approximately $0.4 million of other expenses in connection with the offering of which approximately $0.3 million are recorded as deferred offering costs in the Company’s financial statements as of, and for the nine months ended September 30, 2017. The securities described above were offered by the Company pursuant to a registration statement filed with the SEC that was declared effective on September 28, 2017. The final prospectus relating to the offering was filed with the SEC on October 2, 2017. |