Income Taxes

6 Months Ended

Jun. 30, 2011

Income Taxes

Income Taxes

(12)  Income Taxes

Massachusetts, New Jersey and Connecticut are the three states in which the Company primarily operates or has operated and has income tax nexus. The Company is currently under examination for sales and use taxes by the State of Massachusetts for the period December 2008 through March 2011 and by the Internal Revenue Service with respect to 2008.  The Company is not currently under examination by any other jurisdictions for any tax year.

The Company has evaluated the positive and negative evidence bearing upon the realizability of its net deferred tax assets, which are comprised principally of net operating loss carryforwards, capitalized R&D expenditures and R&D tax credit carryforwards. The Company has determined that it is more likely than not that it will not recognize the benefits of federal and state deferred tax assets and, as a result, a full valuation allowance was maintained at June 30, 2011 and December 31, 2010 against the Company’s net deferred tax assets.