Income Taxes	3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Deferred income tax assets and liabilities are recognized for temporary differences between financial statement and income tax carrying values, using tax rates in effect for the years such differences are expected to reverse. Due to uncertainties surrounding the Company's ability to generate future taxable income and consequently realize such deferred income tax assets, a full valuation allowance has been established. The Company continues to maintain a full valuation allowance against its deferred tax assets as of March 31, 2015. The impact of an uncertain income tax position on the income tax return must be recognized at the largest amount that is more likely than not to be sustained upon audit by the relevant tax authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. There have been no material changes in the Company's unrecognized tax benefits since December 31, 2014; and, as such, disclosures included in the Company's 2014 Annual Report on Form 10-K continue to be relevant for the period ended March 31, 2015.

Income Taxes

3 Months Ended

Mar. 31, 2015

Deferred income tax assets and liabilities are recognized for temporary differences between financial statement and income tax carrying values, using tax rates in effect for the years such differences are expected to reverse. Due to uncertainties surrounding the Company's ability to generate future taxable income and consequently realize such deferred income tax assets, a full valuation allowance has been established. The Company continues to maintain a full valuation allowance against its deferred tax assets as of March 31, 2015.

The impact of an uncertain income tax position on the income tax return must be recognized at the largest amount that is more likely than not to be sustained upon audit by the relevant tax authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. There have been no material changes in the Company's unrecognized tax benefits since December 31, 2014; and, as such, disclosures included in the Company's 2014 Annual Report on Form 10-K continue to be relevant for the period ended March 31, 2015.