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Equity Financing | 3 Months Ended
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Mar. 31, 2016
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Equity Financing | Note 10. Equity Financing In March 2016, we raised gross proceeds of approximately $8,000,000 through an underwritten public offering of 2,222,250 units, at a price of $3.60 per unit, before deducting underwriting discounts and other offering expenses. Each unit consists of a fixed combination of one share of our common stock, a Series A Warrant to purchase 0.50 of a share of our common stock, and a Series B Warrant to purchase 0.75 of a share of our common stock. Each Series A Warrant has an exercise price of $3.60 per share, is immediately exercisable, and will expire two years from the date of issuance. Each Series B Warrant has an exercise price of $5.04 per share, will become exercisable upon stockholder approval of an increase in our authorized capital and the one year anniversary of the issuance date, whichever is later, and will expire on the fifth anniversary of the date they become exercisable. In connection with the offering, we granted the underwriters a 45 day option to purchase up to an additional 333,338 shares of our common stock and/or warrants to purchase up to an additional 416,672 shares of our common stock to cover over-allotments, if any. The option was exercised in part and we issued an additional 166,473 of Series A warrants and 249,709 of Series B Warrants. We received net proceeds (net of offering expenses underwriting discounts and commissions), of approximately $7,100,000. The initial shares and warrants were offered under our effective shelf registration statement previously filed with the SEC. We intend to file a subsequent registration statement to register the common shares issuable when the Series B Warrants become exercisable.

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