Quarterly report pursuant to Section 13 or 15(d)

10. Income Taxes

10. Income Taxes
9 Months Ended
Sep. 30, 2015
Income Tax Disclosure [Abstract]  
Income Taxes

During the three and nine months ended September 30, 2015 and 2014, there was no provision for income taxes as the Company incurred losses during these periods. Deferred tax assets and liabilities reflect the net tax effect of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The Company records a valuation allowance against its deferred tax assets as the Company believes it is more likely than not the deferred tax assets will not be realized. The valuation allowance against deferred tax assets was approximately $17.2 million and $13.8 million as of September 30, 2015 and December 31, 2014, respectively.


During 2014, the Company recorded an unrecognized tax position due to a claim for research and development tax credits. A full valuation allowance had been provided against the Company’s research and development credits. In 2014, the Company determined that it was unable to obtain and compile the necessary information to support and defend the recoverability of the research and development tax credits, resulting in the write-off of the previously fully reserved balance and associated deferred tax asset. As of September 30, 2015 and December 31, 2014, the Company did not record any unrecognized tax positions.