Income Taxes	6 Months Ended
Jun. 30, 2011
Income Taxes	(9) Income Taxes The Company calculates its provision for income taxes on ordinary income based on its projected annual tax rate for the year. As of June 30, 2011, the Company is projecting an ordinary loss for the year ended December 31, 2011 and, since it maintains a full valuation allowance on all of its deferred tax assets, the Company has recorded no income tax provision or benefit in the current quarter and year to date period. As a result of the initial public offering of the Company’s common stock in March 2010, the Company underwent a change in ownership for purposes of Internal Revenue Code Section 382. As a result, the Company believes the utilization of federal net operating loss carryforwards and research credit carryforwards as of the date of the initial public offering will be subject to an annual limitation based on the value of the Company immediately before the stock offering. The annual limitation will be increased in the first five years after the change in ownership as a result of the Company’s built-in-gains. This limitation is not expected to result in the loss of any of these tax attributes during the carryforward period.

Income Taxes

6 Months Ended

Jun. 30, 2011

(9) Income Taxes

The Company calculates its provision for income taxes on ordinary income based on its projected annual tax rate for the year. As of June 30, 2011, the Company is projecting an ordinary loss for the year ended December 31, 2011 and, since it maintains a full valuation allowance on all of its deferred tax assets, the Company has recorded no income tax provision or benefit in the current quarter and year to date period.

As a result of the initial public offering of the Company’s common stock in March 2010, the Company underwent a change in ownership for purposes of Internal Revenue Code Section 382. As a result, the Company believes the utilization of federal net operating loss carryforwards and research credit carryforwards as of the date of the initial public offering will be subject to an annual limitation based on the value of the Company immediately before the stock offering. The annual limitation will be increased in the first five years after the change in ownership as a result of the Company’s built-in-gains. This limitation is not expected to result in the loss of any of these tax attributes during the carryforward period.