NOTE 8—STOCKHOLDERS’ EQUITY (DEFICIT)

Preferred Stock

The Board of Directors, without further stockholder authorization, may issue from time to time up to 1,000,000 shares of the Company’s preferred stock. Of the 1,000,000 shares of preferred stock, 500,000 shares are designated as Series B Junior Participating Cumulative Preferred Stock. As of December 31, 2011 and 2010, none of the preferred stock was outstanding.

The Company has a stockholder rights plan under which one preferred stock purchase right was distributed on January 11, 1999 with respect to each share of common stock outstanding at the close of business on December 31, 1998. The rights provide, among other things, that in the event any person becomes the beneficial owner of 15% or more of the Company’s common stock while the rights are outstanding, each right will be exercisable to purchase shares of common stock having a market value equal to two times the then current exercise price of a right (initially $30.00). The rights also provide that, if on or after the occurrence of such event, the Company merges with any other corporation or 50% or more of its assets or earning power are sold, each right will be exercisable to purchase common stock of the acquiring corporation having a market value equal to two times the then current exercise price of such stock. The rights are subject to redemption at $0.001 per right at any time prior to the first date upon which they become exercisable to purchase common shares. The rights had an original expiration date of December 31, 2008, which was amended further extending the term to December 31, 2018.

Common Stock and Stock Purchase Warrants

At December 31, 2011, the Company had 32,502,000 shares of common stock issued with 30,538,000 shares outstanding. The Company currently has 50,000,000 shares of common stock authorized for issuance and 1,964,000 shares of common stock in its treasury.

In May 2010, the Company granted warrants to purchase an aggregate of 101,694 shares of its common stock to MidCap Financial, LLC, and Silicon Valley Bank at a price per share of $1.77, which was subsequently reduced to $0.84. During February 2011, MidCap Financial, LLC, and Silicon Valley Bank performed a cashless exercise of all of their warrants, which resulted in the combined issuance of 78,172 shares of unregistered stock.

During September 2010, the Company issued warrants (the “IR Warrants”) to purchase an aggregate of 50,000 shares of common stock at a price per share of $0.74 to three service providers who provide investor relations services. The IR Warrants vest quarterly and are revalued each period until the final vesting date. The holders may convert the IR Warrants into a number of shares, in whole or in part. The first tranche of IR Warrants expire on September 20, 2013. Pursuant to the agreement, the service providers were also entitled to a second tranche of IR Warrants to purchase an aggregate of 50,000 shares of common stock at a price per share of $0.74 as a performance bonus when the Company’s stock price closed at a price in excess of $6.00. The second tranche of IR Warrants were subsequently issued in April 2011 and will expire on April 11, 2014. The Company recognized $273,000 of expense related to the IR Warrants during the year ended December 31, 2011. The Company accounts for these non-employee stock warrants using the Black Scholes option pricing model and has concluded that the vesting date is the ultimate final measurement date. As such, the Company will revalue any unvested warrants at the end of each reporting period until the vesting date. As of December 31, 2011, 31,000 of the IR Warrants had been exercised on a cashless basis resulting in the issuance of 24,036 shares of the Company’s common stock and 24,000 of the warrants had been exercised for cash.

On December 23, 2010, the Company entered into a Controlled Equity Offering Agreement (the “Offering Agreement”) with Ascendiant, as sales agent. In accordance with the terms of the Offering Agreement, the Company was able to issue and sell up to 3,000,000 shares of its common stock under the 2010 Shelf Registration Statement with a fee of 3.75% of the gross proceeds in a series of transactions over time as the Company directed in privately negotiated transactions and/or any other method permitted by law, including sales deemed to be an “at the market” offering as defined in Rule 415 under the Securities Act of 1993. “At the market” sales include sales made directly on the NASDAQ Capital Market, the existing trading market for the Company’s common stock, or sales made to or through a market maker other than on an exchange.

During the year ended December 31, 2011, the Company sold approximately 2.2 million shares of common stock with gross proceeds of approximately $7.5 million and net proceeds of approximately $7.2 million, net of commissions and direct costs, through the Offering Agreement with Ascendiant.

On April 7, 2011, the Company entered into an agreement with Rodman & Renshaw, LLC (“Rodman & Renshaw”), pursuant to which Rodman & Renshaw arranged for the sale of shares of its common stock in a registered direct placement (the “April 2011 Registered Direct Placement”) pursuant to the 2010 Shelf Registration Statement with a fee of 4.5% of the aggregate gross proceeds. In addition, on April 7, 2011, the Company and certain institutional investors entered into a securities purchase agreement arranged by Rodman & Renshaw, pursuant to which the Company sold in an aggregate of 320,000 shares of the Company’s common stock in the April 2011 Registered Direct Placement with a purchase price of $5.60 per share for gross proceeds of approximately $1.8 million. The net proceeds to the Company from the April 2011 Registered Direct Placement totaled approximately $1.7 million. The costs associated with the April 2011 Registered Direct Placement of approximately $124,000 were paid in April 2011 upon the closing of the transaction. The shares of common stock sold in connection with the April 2011 Registered Direct Placement were issued pursuant to a prospectus supplement dated April 11, 2011 to the 2010 Shelf Registration Statement, which was filed with the SEC.

The transactions described above exhausted the securities available for sale under the Company’s 2010 Shelf Registration Statement.

In June 2011, the Company entered into a securities purchase agreement (the “June 2011 Securities Purchase Agreement”) with certain institutional investors (the “June 2011 Purchasers”) under which the Company sold an aggregate of 1,625,947 shares of the Company’s common stock at a price of $5.55 per share, together with five-year warrants to purchase 812,974 shares of its common stock having an exercise price of $6.50 per share (the “June 2011 Warrants”). The June 2011 Warrants were not exercisable for six months following their issuance. Gross proceeds from the offering totaled approximately $9 million, and net proceeds to the Company, after commissions and other offering expenses of approximately $622,000, totaled approximately $8.4 million. The Company used the proceeds for working capital and general corporate purposes. In connection with the June 2011 Securities Purchase Agreement, the Company entered into an agreement with Rodman & Renshaw in which Rodman & Renshaw agreed to act as the Company’s exclusive placement agent for the offering and the Company paid Rodman & Renshaw fees totaling approximately $451,000, and reimbursed expenses of $50,000. The commissions and expenses paid to Rodman and Renshaw were included in the offering expenses.

The common stock and the June 2011 Warrants were offered and sold, and the common stock issuable upon exercise of the June 2011 Warrants were offered, pursuant to exemptions from registration set forth in section 4(2) of the 1933 Act and Rule 506 of Regulation D promulgated under the 1933 Act. As such, the common stock, the June 2011 Warrants, and the common stock issuable upon exercise of the June 2011 Warrants was not permitted to be re-offered or resold absent either registration under the 1933 Act or the availability of an exemption from the registration requirements.

The June 2011 Securities Purchase Agreement was subject to a registration rights agreement whereby the Company would have incurred penalties of up to 3.0% of the offering proceeds if it was unable to file a registration statement by July 19, 2011. The Company filed a registration statement on Form S-3 with the SEC to register the Registerable Securities (File No. 333-175664) on July 19, 2011 which was declared effective by the SEC on August 25, 2011, thereby satisfying the registration rights agreement.

On August 2, 2011, the Company repurchased 90,000 of the June 2011 Warrants for $99,900, or $1.11 per underlying share, plus expenses of $30,000.

Stock Options

As of December 31, 2011, a total of 6,950,000 shares have been authorized for issuance under the Company’s 2002 Stock Incentive Plan, of which 2,284,000 shares have been issued for options which have been exercised, 3,858,000 shares have been reserved for options that are outstanding, and 808,000 shares are available for the granting of additional options.

Stock options may be granted as incentive or nonqualified options; however, no incentive stock options have been granted to date. The exercise price of options is at least equal to the market price of the stock as of the date of grant. Options may vest over various periods but typically vest on a quarterly basis over three years. Options expire after five years, ten years or within a specified time from termination of employment, if earlier. The Company issues new shares of common stock upon the exercise of stock options. The following table summarizes option activity:

The following table summarizes additional information for those options that are outstanding and exercisable as of December 31, 2011:

Cash proceeds, along with fair value disclosures related to grants, exercises, and vesting options, are as follows for the years ended December 31 (in thousands, except per share amounts):