Income Taxes	6 Months Ended
Jun. 30, 2012
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES We file income tax returns in the United States federal jurisdiction and various state and foreign jurisdictions. With few exceptions, we are no longer subject to United States federal, state and local, or non-U.S. income tax audit examinations by tax authorities for years before 2004. The Internal Revenue Service (“IRS”) has commenced full or limited scope examinations of our United States income tax returns for subsequent years through 2009. The Company and the IRS have not agreed upon certain issues which remain in the appeals process. We also have state examinations in progress. We recognized income tax expense of $210 and $239 in the three months ended June 30, 2012 and June 30, 2011, respectively. We recognized income tax expense of $720 and $993 in the six months ended June 30, 2012 and June 30, 2011, respectively. In all periods, income tax expense includes 1) the effects of a valuation allowance maintained for federal and certain state deferred tax assets including net operating loss carry forwards, 2) expense for jurisdictions where we generated income but do not have net operating loss carry forwards available, 3) expense for certain jurisdictions where the tax liability is determined based on non-income related activities, such as gross sales, and 4) expense related to unrecognized tax benefits. At June 30, 2012, the deferred tax assets attributable to federal net operating loss carry forwards were $75,215, state net operating loss carry forwards were $29,373, federal tax credit carry forwards were $2,726, and state tax credit carry forwards were $389. The federal net operating loss carry forwards begin to expire in the year 2028, state net operating loss carry forwards generally start to expire in the year 2021, and tax credit carry forwards are subject to certain limitations. While we have no other limitations on the use of our net operating loss carry forwards, we are potentially subject to limitations if a change in control occurs pursuant to applicable statutory regulations. We evaluated all significant available positive and negative evidence, including the existence of losses in recent years and our forecast of future taxable income, and, as a result, determined it was more likely than not that our federal and certain state deferred tax assets, including benefits related to net operating loss carry forwards, would not be realized based on the measurement standards required under the FASB Accounting Standard Codification section 740. As such, we maintain a valuation allowance for these deferred tax assets.

Income Taxes

6 Months Ended

Jun. 30, 2012

INCOME TAXES

We file income tax returns in the United States federal jurisdiction and various state and foreign jurisdictions. With few exceptions, we are no longer subject to United States federal, state and local, or non-U.S. income tax audit examinations by tax authorities for years before 2004. The Internal Revenue Service (“IRS”) has commenced full or limited scope examinations of our United States income tax returns for subsequent years through 2009. The Company and the IRS have not agreed upon certain issues which remain in the appeals process. We also have state examinations in progress.

We recognized income tax expense of $210 and $239 in the three months ended June 30, 2012 and June 30, 2011, respectively. We recognized income tax expense of $720 and $993 in the six months ended June 30, 2012 and June 30, 2011, respectively. In all periods, income tax expense includes 1) the effects of a valuation allowance maintained for federal and certain state deferred tax assets including net operating loss carry forwards, 2) expense for jurisdictions where we generated income but do not have net operating loss carry forwards available, 3) expense for certain jurisdictions where the tax liability is determined based on non-income related activities, such as gross sales, and 4) expense related to unrecognized tax benefits.

At June 30, 2012, the deferred tax assets attributable to federal net operating loss carry forwards were $75,215, state net operating loss carry forwards were $29,373, federal tax credit carry forwards were $2,726, and state tax credit carry forwards were $389. The federal net operating loss carry forwards begin to expire in the year 2028, state net operating loss carry forwards generally start to expire in the year 2021, and tax credit carry forwards are subject to certain limitations. While we have no other limitations on the use of our net operating loss carry forwards, we are potentially subject to limitations if a change in control occurs pursuant to applicable statutory regulations.

We evaluated all significant available positive and negative evidence, including the existence of losses in recent years and our forecast of future taxable income, and, as a result, determined it was more likely than not that our federal and certain state deferred tax assets, including benefits related to net operating loss carry forwards, would not be realized based on the measurement standards required under the FASB Accounting Standard Codification section 740. As such, we maintain a valuation allowance for these deferred tax assets.