Income Taxes	9 Months Ended
Oct. 01, 2011
Income Tax Expense (Benefit) [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes: We are subject to federal income tax as well as income tax of multiple state and foreign jurisdictions. We are no longer subject to federal, state and local, or foreign income tax examinations for years before 2008, 2002 and 2005, respectively. We have federal net operating loss carryforwards that expire at various dates between 2023 and 2029. We have state net operating loss carryforwards that expire at various dates from 2011 through 2030. We also have federal and state credit carryforwards, some of which do not expire, with the remainder expiring at various dates from 2011 through 2031. We have provided a valuation allowance equal to our net federal and state deferred tax assets as we have not met the more-likely-than-not realization threshold for deferred tax asset recognition. We evaluate both positive and negative evidence to determine if some or all of our deferred tax assets should be recognized on a quarterly basis. In future periods, if we determine that we are more-likely-than-not to realize some or all of our deferred tax assets, we will recognize a deferred tax asset and a benefit in the period in which such determination is made. As of October 1, 2011, the net deferred tax asset relates to foreign jurisdictions where we have concluded it is more-likely-than-not that we will realize the net deferred tax assets in future periods. The Internal Revenue Service (“IRS”) examined our income tax returns for 2001 and 2002, and issued proposed adjustments of $1.4 million, plus interest. These adjustments relate to the treatment of acquisition costs and a tax accounting method change for prepaid expenses. We reached an agreement regarding the acquisition costs during the three months ended March 29, 2008. We made a payment of $0.3 million related to this settlement agreement. On May 23, 2008, the Company filed a petition with the Tax Court seeking a redetermination of the prepaid expense adjustment. On May 9, 2011 the United States Tax Court ruled that the IRS did not err in denying the Company's request to change its accounting method with respect to prepaid expenses and held that the Company was not allowed a deduction for prepaid expenses on its 2002 tax return. During the quarter ended October 1, 2011, the Company decided not to pursue further litigation with regard to the prepaid expense adjustment and settled with the IRS. As a result, the Company paid $1.0 million in October 2011 related to disallowed prepaid expense deductions and the corresponding carry back of those deductions to the 1999 and 2000 tax returns through a net operating loss carry back. The amount paid was fully reserved. A benefit of approximately $0.9 million has been recognized in the three months and nine months ended October 1, 2011 for the reversal of uncertain tax positions and related interest for the years effectively settled. We are not currently under examination in any tax jurisdictions. We believe that it is reasonably possible that $0.4 million of unrecognized tax benefits and $0.1 million of associated interest and penalties could significantly change during the next twelve months. The $0.5 million potential change would represent a decrease in unrecognized tax benefits, comprised of items related to federal research and development credits and uncertain income tax positions related to foreign tax filings for years that will no longer be subject to examination under expiring statutes of limitations. We are paying foreign income taxes, which are reflected in the (Benefit) provision for income taxes in our Condensed Consolidated Statements of Operations and are primarily related to the cost of operating an offshore research and development subsidiary and sales subsidiaries. We are not currently paying federal income taxes and do not expect to pay such taxes until the benefits of our tax net operating losses are fully utilized. We expect to pay a nominal amount of state income tax. We accrue interest and penalties related to uncertain tax positions in the (Benefit) provision for income taxes.

Income Taxes:

We are subject to federal income tax as well as income tax of multiple state and foreign jurisdictions. We are no longer subject to federal, state and local, or foreign income tax examinations for years before 2008, 2002 and 2005, respectively. We have federal net operating loss carryforwards that expire at various dates between 2023 and 2029. We have state net operating loss carryforwards that expire at various dates from 2011 through 2030. We also have federal and state credit carryforwards, some of which do not expire, with the remainder expiring at various dates from 2011 through 2031. We have provided a valuation allowance equal to our net federal and state deferred tax assets as we have not met the more-likely-than-not realization threshold for deferred tax asset recognition. We evaluate both positive and negative evidence to determine if some or all of our deferred tax assets should be recognized on a quarterly basis. In future periods, if we determine that we are more-likely-than-not to realize some or all of our deferred tax assets, we will recognize a deferred tax asset and a benefit in the period in which such determination is made. As of October 1, 2011, the net deferred tax asset relates to foreign jurisdictions where we have concluded it is more-likely-than-not that we will realize the net deferred tax assets in future periods.

The Internal Revenue Service (“IRS”) examined our income tax returns for 2001 and 2002, and issued proposed adjustments of $1.4 million, plus interest. These adjustments relate to the treatment of acquisition costs and a tax accounting method change for prepaid expenses. We reached an agreement regarding the acquisition costs during the three months ended March 29, 2008. We made a payment of $0.3 million related to this settlement agreement. On May 23, 2008, the Company filed a petition with the Tax Court seeking a redetermination of the prepaid expense adjustment. On May 9, 2011 the United States Tax Court ruled that the IRS did not err in denying the Company's request to change its accounting method with respect to prepaid expenses and held that the Company was not allowed a deduction for prepaid expenses on its 2002 tax return. During the quarter ended October 1, 2011, the Company decided not to pursue further litigation with regard to the prepaid expense adjustment and settled with the IRS. As a result, the Company paid $1.0 million in October 2011 related to disallowed prepaid expense deductions and the corresponding carry back of those deductions to the 1999 and 2000 tax returns through a net operating loss carry back. The amount paid was fully reserved. A benefit of approximately $0.9 million has been recognized in the three months and nine months ended October 1, 2011 for the reversal of uncertain tax positions and related interest for the years effectively settled.

We are not currently under examination in any tax jurisdictions.

We believe that it is reasonably possible that $0.4 million of unrecognized tax benefits and $0.1 million of associated interest and penalties could significantly change during the next twelve months. The $0.5 million potential change would represent a decrease in unrecognized tax benefits, comprised of items related to federal research and development credits and uncertain income tax positions related to foreign tax filings for years that will no longer be subject to examination under expiring statutes of limitations.

We are paying foreign income taxes, which are reflected in the (Benefit) provision for income taxes in our Condensed Consolidated Statements of Operations and are primarily related to the cost of operating an offshore research and development subsidiary and sales subsidiaries. We are not currently paying federal income taxes and do not expect to pay such taxes until the benefits of our tax net operating losses are fully utilized. We expect to pay a nominal amount of state income tax. We accrue interest and penalties related to uncertain tax positions in the (Benefit) provision for income taxes.