Income Taxes	3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recognizes federal, state and foreign current tax liabilities or assets based on its estimate of taxes payable to or refundable by tax authorities in the current fiscal year. The Company also recognizes federal, state and foreign deferred tax liabilities or assets based on the Company’s estimate of future tax effects attributable to temporary differences and carryforwards. The Company records a valuation allowance to reduce any deferred tax assets by the amount of any tax benefits that, based on available evidence and judgment, are not expected to be realized. The Company assesses whether a valuation allowance should be recorded against its deferred tax assets based on the consideration of all available evidence, using a “more-likely-than-not” realization standard. The four sources of taxable income that must be considered in determining whether deferred tax assets will be realized are: (1) future reversals of existing taxable temporary differences (i.e., offset of gross deferred tax assets against gross deferred tax liabilities); (2) taxable income in prior carryback years, if carryback is permitted under the applicable tax law; (3) tax planning strategies; and (4) future taxable income exclusive of reversing temporary differences and carryforwards. In assessing whether a valuation allowance is required, significant weight is to be given to evidence that can be objectively verified. A significant factor in the Company’s assessment is that the Company is in a three-year historical cumulative loss position. This fact, combined with uncertain near-term market and economic conditions, reduced the Company’s ability to rely on projections of future taxable income in assessing the realizability of its deferred tax assets. After a review of the four sources of taxable income as of March 31, 2015 (as described above), the Company recognized increases in the valuation allowance primarily related to its U.S.-based deferred tax amounts, resulting from carryforward net operating losses generated during the three months ended March 31, 2015. These deferred tax benefits, combined with a corresponding charge to income tax expense related to an increase in the valuation allowance of $3.5 million for the three months ended March 31, 2015, resulted in an insignificant effective income tax rate. The Company’s valuation allowance was $94.3 million on net deferred tax assets of $94.3 million at March 31, 2015. For the three months ended March 31, 2015, the Company recorded an income tax expense of $20,000. This amount varies from the income tax expense that would be computed at the U.S. statutory rate resulting from its operating loss during the period primarily due to the aforementioned offsetting increase in the Company’s deferred tax assets valuation allowance. Pursuant to Internal Revenue Code (“IRC”) Sections 382 and 383, annual use of the Company’s net operating loss and research and development credit carryforwards may be limited in the event a cumulative change in ownership of more than 50% occurs within a three-year period. The Company is in the process of completing an IRC Section 382 analysis, and the Company expects to have this analysis completed within the next six months. The Company follows the accounting guidance related to financial statement recognition, measurement and disclosure of uncertain tax positions. The Company recognizes the impact of an uncertain income tax position on an income tax return at the largest amount that is “more-likely-than-not” to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. As of March 31, 2015 and December 31, 2014, the Company recorded no liability for unrecognized tax benefits. For the three months ended March 31, 2015, the Company recorded no interest expense related to uncertain tax positions. The Company and its subsidiaries file U.S., state, and foreign income tax returns in jurisdictions with various statutes of limitations. The Company is also subject to various Federal income tax examinations for the 2003 through 2014 calendar years due to the availability of net operating loss carryforwards. The Company believes appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years. However, because audit outcomes and the timing of audit settlements are subject to significant uncertainty, the Company’s current estimate of the total amounts of unrecognized tax benefits could increase or decrease for all open years.

Income Taxes

The Company recognizes federal, state and foreign current tax liabilities or assets based on its estimate of taxes payable to or refundable by tax authorities in the current fiscal year. The Company also recognizes federal, state and foreign deferred tax liabilities or assets based on the Company’s estimate of future tax effects attributable to temporary differences and carryforwards. The Company records a valuation allowance to reduce any deferred tax assets by the amount of any tax benefits that, based on available evidence and judgment, are not expected to be realized.

The Company assesses whether a valuation allowance should be recorded against its deferred tax assets based on the consideration of all available evidence, using a “more-likely-than-not” realization standard. The four sources of taxable income that must be considered in determining whether deferred tax assets will be realized are: (1) future reversals of existing taxable temporary differences (i.e., offset of gross deferred tax assets against gross deferred tax liabilities); (2) taxable income in prior carryback years, if carryback is permitted under the applicable tax law; (3) tax planning strategies; and (4) future taxable income exclusive of reversing temporary differences and carryforwards.

In assessing whether a valuation allowance is required, significant weight is to be given to evidence that can be objectively verified. A significant factor in the Company’s assessment is that the Company is in a three-year historical cumulative loss position. This fact, combined with uncertain near-term market and economic conditions, reduced the Company’s ability to rely on projections of future taxable income in assessing the realizability of its deferred tax assets.

After a review of the four sources of taxable income as of March 31, 2015 (as described above), the Company recognized increases in the valuation allowance primarily related to its U.S.-based deferred tax amounts, resulting from carryforward net operating losses generated during the three months ended March 31, 2015. These deferred tax benefits, combined with a corresponding charge to income tax expense related to an increase in the valuation allowance of $3.5 million for the three months ended March 31, 2015, resulted in an insignificant effective income tax rate. The Company’s valuation allowance was $94.3 million on net deferred tax assets of $94.3 million at March 31, 2015.

For the three months ended March 31, 2015, the Company recorded an income tax expense of $20,000. This amount varies from the income tax expense that would be computed at the U.S. statutory rate resulting from its operating loss during the period primarily due to the aforementioned offsetting increase in the Company’s deferred tax assets valuation allowance.

Pursuant to Internal Revenue Code (“IRC”) Sections 382 and 383, annual use of the Company’s net operating loss and research and development credit carryforwards may be limited in the event a cumulative change in ownership of more than 50% occurs within a three-year period. The Company is in the process of completing an IRC Section 382 analysis, and the Company expects to have this analysis completed within the next six months.

The Company follows the accounting guidance related to financial statement recognition, measurement and disclosure of uncertain tax positions. The Company recognizes the impact of an uncertain income tax position on an income tax return at the largest amount that is “more-likely-than-not” to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. As of March 31, 2015 and December 31, 2014, the Company recorded no liability for unrecognized tax benefits. For the three months ended March 31, 2015, the Company recorded no interest expense related to uncertain tax positions.

The Company and its subsidiaries file U.S., state, and foreign income tax returns in jurisdictions with various statutes of limitations. The Company is also subject to various Federal income tax examinations for the 2003 through 2014 calendar years due to the availability of net operating loss carryforwards. The Company believes appropriate provisions for all outstanding issues have been made for all jurisdictions and all open years. However, because audit outcomes and the timing of audit settlements are subject to significant uncertainty, the Company’s current estimate of the total amounts of unrecognized tax benefits could increase or decrease for all open years.