Offerings of Common Stock	12 Months Ended
Dec. 31, 2011
Offerings of Common Stock	12. Offerings of Common Stock The Company sold shares of its common stock during 2009, 2010 and 2011 in three private placements and one registered offering, as described below. In connection with the private placements, the Company entered into registration rights agreements with the purchasers of the common shares. Subsequently, in February 2012, the Company completed another private placement of common stock. For further information regarding the February 2012 private placement, please refer to Note 15 regarding Subsequent Events. Common stock On February 27, 2010, we entered into a Purchase Agreement with certain affiliates of Special Situations Funds for the private placement of 2,000,000 newly-issued shares of the Company's common stock at a per share price of $1.00. The closing of the sale of the Shares occurred on Monday, March 2, 2010 and we received net proceeds of $2,000,000 on the same date. In connection with the Special Situations Funds Private Placement, we also entered into a Registration Rights Agreement, dated February 27, 2010, with the Purchasers (the “Registration Rights Agreement”) pursuant to which the Company filed a registration statement with the Securities and Exchange Commission (“SEC“) to register the 2,000,000 shares for resale, which registration statement became effective on June 30, 2010. The Special Situations Registration Rights Agreement provides an explicitly stated or defined penalty due upon a breach, which allows the Company to apply the guidance of ASC 825-20-15, Registration Payment Arrangements, and compliance with all filing requirements under the 1934 Act as described above was solely within the Company’s control. As such, it allowed the Company to include the $2,000,000 in the Company’s common stock as stockholders’ equity in the accompanying balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities. On May 6, 2011, the Company issued 1,175,512 shares of its common stock at a price of $1.99 per share in a registered direct public offering to certain institutional investors and received net proceeds of approximately $2.2 million from the sales, after deducting its estimated offering expenses. The securities issued with this financing were registered under the Securities and Exchange Act of 1933, as amended. The shares were issued pursuant to a prospectus supplement dated May 4, 2011 and an accompanying prospectus dated January 6, 2011, pursuant to the Company’s existing effective shelf registration statement on Form S-3 (File No. 333-171266), which was filed with the SEC on December 17, 2010 and declared effective by the SEC on January 6, 2011. Common stock classified outside of stockholders’ equity (deficit) On July 22, 2009, the Company entered into a Purchase Agreement with certain funds managed by Lansdowne Partners Limited Partnership for the private placement of 3,057,907 newly-issued shares of the Company's common stock at a per share price of $1.30. The closing of the sale of the shares occurred on July 22, 2009. The aggregate offering price of the shares was approximately $4 million and the Company received the funds on July 23, 2009. In connection with the acquisition of the shares, the Purchasers were granted certain preemptive rights permitting them to maintain their percentage ownership interests in connection with future issuances of the Company’s capital stock, subject to various exceptions and limitations. Pursuant to the Lansdowne Registration Rights Agreement which is dated July 22, 2009, the Company filed a registration statement with the SEC to register the 3,057,907 shares sold to Lansdowne for resale, which became effective on November 3, 2009 and which registration statement is currently effective. Under the Lansdowne Registration Rights Agreement, the Company was required to have the registration statement declared effective within 120 days after the private placement closed. In addition, the Company is obligated to use commercially reasonable efforts (i) to cause the registration statement described above to remain continuously effective and (ii) to maintain the listing of the Company’s common stock on Nasdaq or other exchanges, as defined, for a period that will terminate on the earlier of July 22, 2012 or the date on which Lansdowne has sold all of its shares of common stock. The Company is also required to file with the SEC in a timely manner all reports and other documents required of the Company under the 1934 Act. In the event the Company fails to satisfy its obligations under the Lansdowne Registration Rights Agreement, the Company would be in breach of said agreement, in which event Lansdowne would be entitled to pursue all rights and remedies at law or equity including an injunction or other equitable relief. The Lansdowne Registration Rights Agreement does not provide an explicitly stated or defined penalty due upon a breach. Because (i) the potential penalty for any breach of the Lansdowne Registration Rights Agreement is not explicitly stated or defined, which prohibits the Company from applying the guidance of ASC 825-20-15, Registration Payment Arrangement, and (ii) complying will all filing requirements under the 1934 Act as described above is not solely within the Company’s control, the Company is required to present Lansdowne’s investment of $3,975,279 in the Company’s common stock as common stock outside of stockholders’ equity in the accompanying consolidated balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities. On March 5, 2010, the Company entered into a Purchase Agreement with certain affiliates of and funds managed by Lansdowne Partners Limited Partnership, Greenway Capital Partners and Paragon Associates for the private placement of 3,005,349 newly-issued shares of our common stock at a per share price of $1.31. The closing of the sale of the shares occurred on Friday, March 5, 2010. In connection with the acquisition of the shares, the Purchasers were granted certain preemptive rights permitting them to maintain their percentage ownership interests in connection with future issuances of the Company’s capital stock, subject to various exceptions and limitations. Lansdowne participated in the Private Placement by electing to exercise the preemptive rights granted to it pursuant to the Purchase Agreement by and between the Company and Lansdowne, dated July 22, 2009. Net proceeds received from this financing were approximately $3,879,403. In connection with the Private Placement, the Company also entered into a Registration Rights Agreement, dated March 5, 2010, with the Purchasers (the Registration Rights Agreement) pursuant to which it has agreed to file, within 45 days of the closing of the Private Placement, a registration statement with the SEC to register the shares for resale, which registration statement is required to become effective within 120 days following the closing. The Company also granted certain "piggyback" registration rights to the Purchasers which are triggered if the Company proposes to file a registration statement for its own account or the account of one or more shareholders until the earlier of the sale of all of the shares or the shares become eligible for sale under Rule 144(b)(1) without restriction. Under the Registration Rights Agreements with the Purchasers, the Company is obligated to use commercially reasonable efforts to (i) cause the registration statements described above to remain continuously effective and (ii) to maintain the listing of Company’s common stock on Nasdaq or other exchanges, as defined, for a period that will terminate on the earlier of March 5, 2013 or the date on which the Purchasers have sold all shares of common stock. The Company is also required to file with the SEC in a timely manner all reports and other documents required of the Company required of the Company under the 1934 Act. In the event the Company fails to satisfy its obligations under the registration rights agreements, the Company would be in breach of said agreements, in which event, the Purchases would be entitled to pursue all rights and remedies at law or equity including an injunction or other equitable relief. These registration rights agreements do not provide an explicitly stated or defined penalty due upon a breach. Because (i) the potential penalty for any breach of these Registration Rights Agreement is not explicitly stated or defined, which prohibits the Company from applying the guidance of ASC 825-20-15, Registration Payment Arrangements and (ii) complying with all filing requirements under the 1934 Act as described above is not solely within the Company’s control, the Company is required to present the investment of approximately $3,879,403 in the Company’s common stock as common stock outside of stockholders’ equity in the accompanying consolidated balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities . As of December 31, 2010 and 2011, a total of $7,854,682 and $7,854,682 of common stock was classified outside of stockholders’ equity (deficit), respectively.

12. Offerings of Common Stock

The Company sold shares of its common stock during 2009, 2010 and 2011 in three private placements and one registered offering, as described below. In connection with the private placements, the Company entered into registration rights agreements with the purchasers of the common shares. Subsequently, in February 2012, the Company completed another private placement of common stock. For further information regarding the February 2012 private placement, please refer to Note 15 regarding Subsequent Events.

Common stock

On February 27, 2010, we entered into a Purchase Agreement with certain affiliates of Special Situations Funds for the private placement of 2,000,000 newly-issued shares of the Company's common stock at a per share price of $1.00. The closing of the sale of the Shares occurred on Monday, March 2, 2010 and we received net proceeds of $2,000,000 on the same date.

In connection with the Special Situations Funds Private Placement, we also entered into a Registration Rights Agreement, dated February 27, 2010, with the Purchasers (the “Registration Rights Agreement”) pursuant to which the Company filed a registration statement with the Securities and Exchange Commission (“SEC“) to register the 2,000,000 shares for resale, which registration statement became effective on June 30, 2010.

The Special Situations Registration Rights Agreement provides an explicitly stated or defined penalty due upon a breach, which allows the Company to apply the guidance of ASC 825-20-15, Registration Payment Arrangements, and compliance with all filing requirements under the 1934 Act as described above was solely within the Company’s control. As such, it allowed the Company to include the $2,000,000 in the Company’s common stock as stockholders’ equity in the accompanying balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities.

On May 6, 2011, the Company issued 1,175,512 shares of its common stock at a price of $1.99 per share in a registered direct public offering to certain institutional investors and received net proceeds of approximately $2.2 million from the sales, after deducting its estimated offering expenses. The securities issued with this financing were registered under the Securities and Exchange Act of 1933, as amended. The shares were issued pursuant to a prospectus supplement dated May 4, 2011 and an accompanying prospectus dated January 6, 2011, pursuant to the Company’s existing effective shelf registration statement on Form S-3 (File No. 333-171266), which was filed with the SEC on December 17, 2010 and declared effective by the SEC on January 6, 2011.

Common stock classified outside of stockholders’ equity (deficit)

On July 22, 2009, the Company entered into a Purchase Agreement with certain funds managed by Lansdowne Partners Limited Partnership for the private placement of 3,057,907 newly-issued shares of the Company's common stock at a per share price of $1.30. The closing of the sale of the shares occurred on July 22, 2009. The aggregate offering price of the shares was approximately $4 million and the Company received the funds on July 23, 2009. In connection with the acquisition of the shares, the Purchasers were granted certain preemptive rights permitting them to maintain their percentage ownership interests in connection with future issuances of the Company’s capital stock, subject to various exceptions and limitations.

Pursuant to the Lansdowne Registration Rights Agreement which is dated July 22, 2009, the Company filed a registration statement with the SEC to register the 3,057,907 shares sold to Lansdowne for resale, which became effective on November 3, 2009 and which registration statement is currently effective.

Under the Lansdowne Registration Rights Agreement, the Company was required to have the registration statement declared effective within 120 days after the private placement closed. In addition, the Company is obligated to use commercially reasonable efforts (i) to cause the registration statement described above to remain continuously effective and (ii) to maintain the listing of the Company’s common stock on Nasdaq or other exchanges, as defined, for a period that will terminate on the earlier of July 22, 2012 or the date on which Lansdowne has sold all of its shares of common stock. The Company is also required to file with the SEC in a timely manner all reports and other documents required of the Company under the 1934 Act. In the event the Company fails to satisfy its obligations under the Lansdowne Registration Rights Agreement, the Company would be in breach of said agreement, in which event Lansdowne would be entitled to pursue all rights and remedies at law or equity including an injunction or other equitable relief. The Lansdowne Registration Rights Agreement does not provide an explicitly stated or defined penalty due upon a breach. Because (i) the potential penalty for any breach of the Lansdowne Registration Rights Agreement is not explicitly stated or defined, which prohibits the Company from applying the guidance of ASC 825-20-15, Registration Payment Arrangement, and (ii) complying will all filing requirements under the 1934 Act as described above is not solely within the Company’s control, the Company is required to present Lansdowne’s investment of $3,975,279 in the Company’s common stock as common stock outside of stockholders’ equity in the accompanying consolidated balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities.

On March 5, 2010, the Company entered into a Purchase Agreement with certain affiliates of and funds managed by Lansdowne Partners Limited Partnership, Greenway Capital Partners and Paragon Associates for the private placement of 3,005,349 newly-issued shares of our common stock at a per share price of $1.31. The closing of the sale of the shares occurred on Friday, March 5, 2010. In connection with the acquisition of the shares, the Purchasers were granted certain preemptive rights permitting them to maintain their percentage ownership interests in connection with future issuances of the Company’s capital stock, subject to various exceptions and limitations. Lansdowne participated in the Private Placement by electing to exercise the preemptive rights granted to it pursuant to the Purchase Agreement by and between the Company and Lansdowne, dated July 22, 2009. Net proceeds received from this financing were approximately $3,879,403.

In connection with the Private Placement, the Company also entered into a Registration Rights Agreement, dated March 5, 2010, with the Purchasers (the Registration Rights Agreement) pursuant to which it has agreed to file, within 45 days of the closing of the Private Placement, a registration statement with the SEC to register the shares for resale, which registration statement is required to become effective within 120 days following the closing. The Company also granted certain "piggyback" registration rights to the Purchasers which are triggered if the Company proposes to file a registration statement for its own account or the account of one or more shareholders until the earlier of the sale of all of the shares or the shares become eligible for sale under Rule 144(b)(1) without restriction.

Under the Registration Rights Agreements with the Purchasers, the Company is obligated to use commercially reasonable efforts to (i) cause the registration statements described above to remain continuously effective and (ii) to maintain the listing of Company’s common stock on Nasdaq or other exchanges, as defined, for a period that will terminate on the earlier of March 5, 2013 or the date on which the Purchasers have sold all shares of common stock. The Company is also required to file with the SEC in a timely manner all reports and other documents required of the Company required of the Company under the 1934 Act. In the event the Company fails to satisfy its obligations under the registration rights agreements, the Company would be in breach of said agreements, in which event, the Purchases would be entitled to pursue all rights and remedies at law or equity including an injunction or other equitable relief. These registration rights agreements do not provide an explicitly stated or defined penalty due upon a breach. Because (i) the potential penalty for any breach of these Registration Rights Agreement is not explicitly stated or defined, which prohibits the Company from applying the guidance of ASC 825-20-15, Registration Payment Arrangements and (ii) complying with all filing requirements under the 1934 Act as described above is not solely within the Company’s control, the Company is required to present the investment of approximately $3,879,403 in the Company’s common stock as common stock outside of stockholders’ equity in the accompanying consolidated balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities .

As of December 31, 2010 and 2011, a total of $7,854,682 and $7,854,682 of common stock was classified outside of stockholders’ equity (deficit), respectively.