Capital Stock	9 Months Ended
Sep. 30, 2011
Capital Stock	Note 9—Capital Stock Authorized Preferred and Common Stock At September 30, 2011, the Company had authorized 6,000,000 shares of $0.001 par value Series A Preferred Stock, of which 5,000,000 were issued and outstanding. At September 30, 2011, the Company had authorized 100,000,000 shares of $0.001 par value common stock of which 74,035,670 shares were outstanding or reserved for issuance. Of those, 36,684,256 shares were outstanding; 28,160,200 shares were reserved for the conversion of Series A Preferred to common stock; 1,937,200 shares were reserved for the conversion of the $11,000,000 of debt outstanding under the credit facility with Pyxis; 4,442,380 shares were reserved for the potential exercise of authorized and outstanding stock options; 400,000 shares were reserved for the exercise of outstanding warrants to purchase common stock at an exercise price of $2.50 per share which are exercisable currently until the expiration date of August 9, 2012; 1,750,000 shares were reserved for the exercise of outstanding warrants to purchase common stock at an exercise price of $1.30 per share which are exercisable currently until the expiration date of March 10, 2015; 77,611 shares were reserved for the potential exercise of rights held under the Employee Stock Purchase Plan; and 584,023 shares were reserved for the issuance upon the conversion of convertible notes that may be issued to Pyxis under the existing credit facility. On March 5, 2010, the Company entered into a definitive agreement with certain institutional investors to sell $5.3 million of securities in a registered direct offering. The investors purchased an aggregate of 4,375,002 units for $1.20 per unit, with each unit consisting of a share of common stock and a warrant to purchase 0.40 of a share of common stock. The warrants are exercisable at $1.30 per share and expire on March 10, 2015. Net proceeds to the Company after fees and expenses were approximately $4.9 million. Series A Preferred Stock On March 5, 2003, the Company entered into a Stock Purchase Agreement with Pyxis, pursuant to which Pyxis purchased from the Company 5,000,000 shares of Series A Preferred Stock for $7,000,000 in cash on that date, and an additional $2,000,000 in cash that was paid, as a result of the Company achieving a certain milestone, on March 11, 2004. The Series A Preferred Stock accrues dividends at the rate of 8% of the original purchase price per year, payable only when, as and if declared by the Board of Directors and are non-cumulative. To date, no dividends have been declared on these shares. If the Company declares a distribution, with certain exceptions, payable in securities of other persons, evidences of indebtedness issued by the Company or other persons, assets (excluding cash dividends) or options or rights to purchase any such securities or evidences of indebtedness, then, in each such case the holders of the Series A Preferred Stock shall be entitled to a proportionate share of any such distribution as though the holders of the Series A Preferred Stock were the holders of the number of shares of common stock into which their respective shares of Series A Preferred Stock are convertible as of the record date fixed for the determination of the holders of common stock entitled to receive such distribution. In the event of any liquidation, dissolution or winding up of the Company, whether voluntary or involuntary, the holders of the Series A Preferred Stock shall be entitled to receive, prior and in preference to any distribution of any of the Company’s assets or surplus funds to the holders of its common stock by reason of their ownership thereof, the amount of two times the then-effective purchase price per share, as adjusted for any stock dividends, combinations or splits with respect to such shares, plus all declared but unpaid dividends on such shares for each share of Series A Preferred Stock then held by them. The liquidation preference at September 30, 2011 was $18,000,000. After receiving this amount, the holders of the Series A Preferred Stock are entitled to participate on an as-converted basis with the holders of Common Stock in any of the remaining assets. Each share of Series A Preferred Stock is convertible at any time at the option of the holder into a number of shares of the Company’s common stock determined by dividing the then-effective purchase price ($1.80, and subject to further adjustment) by the conversion price in effect on the date the certificate is surrendered for conversion. As of September 30, 2011, the Series A Preferred Stock was convertible into 28,160,200 shares of common stock reflecting a current conversion price of $0.3196 per share. Each holder of Series A Preferred Stock is entitled to vote its shares of Series A Preferred Stock on an as-converted basis with the holders of common stock as a single class on all matters submitted to a vote of the stockholders, except as otherwise required by applicable law. This means that each share of Series A Preferred Stock will be entitled to a number of votes equal to the number of shares of common stock into which it is convertible on the applicable record date.

Capital Stock

9 Months Ended

Sep. 30, 2011

Note 9—Capital Stock

Authorized Preferred and Common Stock

At September 30, 2011, the Company had authorized 6,000,000 shares of $0.001 par value Series A Preferred Stock, of which 5,000,000 were issued and outstanding. At September 30, 2011, the Company had authorized 100,000,000 shares of $0.001 par value common stock of which 74,035,670 shares were outstanding or reserved for issuance. Of those, 36,684,256 shares were outstanding; 28,160,200 shares were reserved for the conversion of Series A Preferred to common stock; 1,937,200 shares were reserved for the conversion of the $11,000,000 of debt outstanding under the credit facility with Pyxis; 4,442,380 shares were reserved for the potential exercise of authorized and outstanding stock options; 400,000 shares were reserved for the exercise of outstanding warrants to purchase common stock at an exercise price of $2.50 per share which are exercisable currently until the expiration date of August 9, 2012; 1,750,000 shares were reserved for the exercise of outstanding warrants to purchase common stock at an exercise price of $1.30 per share which are exercisable currently until the expiration date of March 10, 2015; 77,611 shares were reserved for the potential exercise of rights held under the Employee Stock Purchase Plan; and 584,023 shares were reserved for the issuance upon the conversion of convertible notes that may be issued to Pyxis under the existing credit facility.

On March 5, 2010, the Company entered into a definitive agreement with certain institutional investors to sell $5.3 million of securities in a registered direct offering. The investors purchased an aggregate of 4,375,002 units for $1.20 per unit, with each unit consisting of a share of common stock and a warrant to purchase 0.40 of a share of common stock. The warrants are exercisable at $1.30 per share and expire on March 10, 2015. Net proceeds to the Company after fees and expenses were approximately $4.9 million.

Series A Preferred Stock

On March 5, 2003, the Company entered into a Stock Purchase Agreement with Pyxis, pursuant to which Pyxis purchased from the Company 5,000,000 shares of Series A Preferred Stock for $7,000,000 in cash on that date, and an additional $2,000,000 in cash that was paid, as a result of the Company achieving a certain milestone, on March 11, 2004.

The Series A Preferred Stock accrues dividends at the rate of 8% of the original purchase price per year, payable only when, as and if declared by the Board of Directors and are non-cumulative. To date, no dividends have been declared on these shares. If the Company declares a distribution, with certain exceptions, payable in securities of other persons, evidences of indebtedness issued by the Company or other persons, assets (excluding cash dividends) or options or rights to purchase any such securities or evidences of indebtedness, then, in each such case the holders of the Series A Preferred Stock shall be entitled to a proportionate share of any such distribution as though the holders of the Series A Preferred Stock were the holders of the number of shares of common stock into which their respective shares of Series A Preferred Stock are convertible as of the record date fixed for the determination of the holders of common stock entitled to receive such distribution.

In the event of any liquidation, dissolution or winding up of the Company, whether voluntary or involuntary, the holders of the Series A Preferred Stock shall be entitled to receive, prior and in preference to any distribution of any of the Company’s assets or surplus funds to the holders of its common stock by reason of their ownership thereof, the amount of two times the then-effective purchase price per share, as adjusted for any stock dividends, combinations or splits with respect to such shares, plus all declared but unpaid dividends on such shares for each share of Series A Preferred Stock then held by them. The liquidation preference at September 30, 2011 was $18,000,000. After receiving this amount, the holders of the Series A Preferred Stock are entitled to participate on an as-converted basis with the holders of Common Stock in any of the remaining assets.

Each share of Series A Preferred Stock is convertible at any time at the option of the holder into a number of shares of the Company’s common stock determined by dividing the then-effective purchase price ($1.80, and subject to further adjustment) by the conversion price in effect on the date the certificate is surrendered for conversion. As of September 30, 2011, the Series A Preferred Stock was convertible into 28,160,200 shares of common stock reflecting a current conversion price of $0.3196 per share.

Each holder of Series A Preferred Stock is entitled to vote its shares of Series A Preferred Stock on an as-converted basis with the holders of common stock as a single class on all matters submitted to a vote of the stockholders, except as otherwise required by applicable law. This means that each share of Series A Preferred Stock will be entitled to a number of votes equal to the number of shares of common stock into which it is convertible on the applicable record date.