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Preferred Stock, Common Stock and Warrants
 12 Months Ended
Dec. 31, 2014
Preferred Stock Common Stock And Warrants [Abstract]  
Preferred Stock, Common Stock and Warrants

12.

Preferred Stock, Common Stock and Warrants

Preferred Stock Outstanding

As of December 31, 2014 there were 5,000,000 shares of preferred stock authorized and 43,430 shares of Series B Convertible Preferred Stock outstanding.

In October 2013 the Company sold 43,430 shares of $0.001 par value Series B Convertible Preferred Stock for a purchase price of $1,075 per share and gross proceeds of approximately $46.7 million in an underwritten public offering. After issuance costs of approximately $2.5 million, the net proceeds from the offering were approximately $44.2 million.

Each share of Series B Convertible Preferred Stock is convertible into 100 shares of common stock at any time at the holder’s option. However, the holder is prohibited from converting the Series B Convertible Preferred Stock into shares of common stock if, as a result of such conversion, the holder and its affiliates would own more than 9.98% of the total number of shares of common stock then issued and outstanding. In the event of the Company’s liquidation, dissolution, or winding up, holders of Series B Convertible Preferred Stock will receive a payment equal to $0.001 per share before any proceeds are distributed to the common stockholders. Shares of Series B Convertible Preferred Stock generally have no voting rights, except as required by law and except that the consent of holders of a majority of the outstanding Series B Convertible Preferred Stock is required to amend the terms of the Series B Convertible Preferred Stock. Holders of Series B Convertible Preferred Stock are not entitled to receive any dividends, unless and until specifically declared by the Company’s board of directors. The Series B Convertible Preferred Stock ranks senior to the Company’s common stock as to distributions of assets upon the Company’s liquidation, dissolution or winding up, whether voluntarily or involuntarily. The Series B Convertible Preferred Stock may rank senior to, on parity with or junior to any class or series of the Company’s capital stock created in the future depending upon the specific terms of such future stock issuance.

The fair value of the common stock into which the Series B Convertible Preferred Stock is convertible exceeded the allocated purchase price of the Series B Convertible Preferred Stock by $8.5 million on the date of issuance, for which the Company recorded a deemed dividend. The Company recognized the deemed dividend equal to the number of shares of Series B Convertible Preferred Stock sold on October 30, 2013 multiplied by the difference between the value of the common stock and the Series B Convertible Preferred Stock conversion price per share on that date. The dividend was reflected as a one-time, non-cash, deemed dividend to the holders of Series B Convertible Preferred Stock on the date of issuance, which is the date the stock first became convertible.

Preferred Share Purchase Rights

On November 4, 2008, our Board of Directors declared a dividend of one preferred share purchase right (a “Right”) for each outstanding share of our Common Stock, par value $0.001 per share (the “Common Shares”). The dividend was payable on November 17, 2008 to the stockholders of record on that date. Each Right entitles the registered holder to purchase from us one one-hundredth of a share of Series A Junior Participating Preferred Stock, par value $0.001 per share (the “Preferred Shares”), at a price of $6.00 per one one-hundredth of a Preferred Share, subject to adjustment. Upon the acquisition of, or announcement of the intent to acquire, 20 percent or more of our outstanding Common Shares by a person, entity or group of affiliated or associated persons (“Acquiring Person”), each holder of a Right, other than Rights held by the Acquiring Person, will have the right to purchase that number of Common Shares having a market value of two times the exercise price of the Right. If we are acquired in a merger or other business combination transaction or 50 percent or more of our assets or earning power are sold to an Acquiring Person, each holder of a Right will thereafter have the right to purchase, at the then current exercise price of the Right, that number of shares of common stock of the acquiring company which at the time of such transaction will have a market value of two times the exercise price of the Right. The Rights plan is intended to maximize the value of the Company in the event of an unsolicited attempt to take over the Company in a manner or on terms not approved by the Company’s Board of Directors. The Rights will expire on November 17, 2018, unless the Rights are earlier redeemed or exchanged by the Company.

Common Stock Outstanding

On November 10, 2014, we entered into an At Market Issuance Sales Agreement (the “ATM Agreement”) with Cowen and Company, LLC (“Cowen”) under which we may offer and sell our common stock having aggregate sales proceeds of up to $50,000,000 from time to time through Cowen as our sales agent. Sales of our common stock through Cowen, if any, will be made by means of ordinary brokers’ transactions on the NASDAQ Capital Market or otherwise at market prices prevailing at the time of sale, in block transactions, or as otherwise agreed upon by us and Cowen. Cowen will use commercially reasonable efforts to sell our common stock from time to time, based upon instructions from us (including any price, time or size limits or other customary parameters or conditions we may impose). We will pay Cowen a commission of up to 3.0% of the gross sales proceeds of any common stock sold through Cowen under the Agreement. No sales of our common stock have taken place under this ATM Agreement as of December 31, 2014.

In October 2013 we completed an underwritten public offering of 7,957,000 shares of our common stock to the public at $1.075 per share. The gross proceeds to us from this offering were approximately $85.5 million. After deducting issuance costs of approximately $4.5 million, the net proceeds from the offering were approximately $80.9 million.

Warrants

As of December 31, 2014, warrants to purchase an aggregate of approximately 1,100,000 shares of our common stock were outstanding. The warrants are exercisable at a weighted average price of $15.00 per share and will expire on April 16, 2015. During the years ended December 31, 2014, and 2013, warrants were exercised to purchase an aggregate of approximately 11,000 and 25,000 shares, respectively, of our common stock.