INCOME TAXES	9 Months Ended
Sep. 29, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company recorded a tax benefit of approximately $0.3 million and $0.1 million for the three months and nine months ended September 29, 2018, respectively. The tax benefit for the three months and nine months ended September 29, 2018 was due to a change in estimate related to deferred tax liabilities for the Company's withholding tax on future repatriated earnings from the Company's Korean subsidiary. The Company’s tax benefit of approximately $1.1 million for the nine months ended September 30, 2017, represents the net benefit of $0.1 million for foreign income taxes including loss carryback to 2016, uncertain tax positions and a benefit for the net reduction in estimated foreign withholding. In addition, as a result of the acquisition of NVIS, Inc. in the first quarter of 2017, we recognized $1.0 million of deferred tax liabilities, which provided evidence of recoverability of our net deferred tax assets that previously carried a full valuation allowance. We reduced the valuation allowance on our net deferred tax assets in the amount of $1.0 million and such reduction was recognized as a benefit for income taxes for the nine months ended September 30, 2017. As of September 29, 2018, the Company has available for tax purposes U.S. federal NOLs of approximately $184.0 million expiring 2022 through 2037. The Company has recognized a full valuation allowance on its domestic and certain foreign net deferred tax assets due to the uncertainty of realization of such assets. Ownership changes, as defined by the Internal Revenue Code, may substantially limit the amount of net operating loss carryforwards that can be utilized annually to offset future taxable income. The ownership change of NVIS, Inc. in 2017 did not result in an annual net operating loss limitation as the acquired entity was an S Corporation and did not have loss carryforwards. Subsequent ownership changes could affect the limitation in future years. Such annual limitations could result in the expiration of net operating loss and tax credit carryforwards before utilization. The tax years 2001 through 2016 remain open to examination by major taxing jurisdictions where the Company is subject to United States federal tax. These periods have carryforward attributes generated in years past that may still be adjusted upon examination by the Internal Revenue Service or state tax authorities if they have or will be used in a future period. State statutes are generally shorter with shorter carryforward periods. The Company is currently not under examination by the Internal Revenue Service and is currently under examination by Massachusetts for the 2013 tax year. The Company recognizes both accrued interest and penalties related to its uncertain tax positions related to intercompany loan interest and potential transfer pricing exposure related to its Korean subsidiary. The Company is in the process of dissolving and repatriating the unremitted earnings of its Korean subsidiary. As such, it accrues U.S. tax for the possible future repatriation of these unremitted foreign earnings. If the Company were to repatriate these earnings, it expects to have foreign withholding at a rate of 16.5% and does not expect any taxes to be paid in the U.S. when repatriated as it currently is expected to be a return of capital.

INCOME TAXES

The Company recorded a tax benefit of approximately $0.3 million and $0.1 million for the three months and nine months ended September 29, 2018, respectively. The tax benefit for the three months and nine months ended September 29, 2018 was due to a change in estimate related to deferred tax liabilities for the Company's withholding tax on future repatriated earnings from the Company's Korean subsidiary. The Company’s tax benefit of approximately $1.1 million for the nine months ended September 30, 2017, represents the net benefit of $0.1 million for foreign income taxes including loss carryback to 2016, uncertain tax positions and a benefit for the net reduction in estimated foreign withholding. In addition, as a result of the acquisition of NVIS, Inc. in the first quarter of 2017, we recognized $1.0 million of deferred tax liabilities, which provided evidence of recoverability of our net deferred tax assets that previously carried a full valuation allowance. We reduced the valuation allowance on our net deferred tax assets in the amount of $1.0 million and such reduction was recognized as a benefit for income taxes for the nine months ended September 30, 2017. As of September 29, 2018, the Company has available for tax purposes U.S. federal NOLs of approximately $184.0 million expiring 2022 through 2037. The Company has recognized a full valuation allowance on its domestic and certain foreign net deferred tax assets due to the uncertainty of realization of such assets.

Ownership changes, as defined by the Internal Revenue Code, may substantially limit the amount of net operating loss carryforwards that can be utilized annually to offset future taxable income. The ownership change of NVIS, Inc. in 2017 did not result in an annual net operating loss limitation as the acquired entity was an S Corporation and did not have loss carryforwards. Subsequent ownership changes could affect the limitation in future years. Such annual limitations could result in the expiration of net operating loss and tax credit carryforwards before utilization.

The tax years 2001 through 2016 remain open to examination by major taxing jurisdictions where the Company is subject to United States federal tax. These periods have carryforward attributes generated in years past that may still be adjusted upon examination by the Internal Revenue Service or state tax authorities if they have or will be used in a future period. State statutes are generally shorter with shorter carryforward periods. The Company is currently not under examination by the Internal Revenue Service and is currently under examination by Massachusetts for the 2013 tax year. The Company recognizes both accrued interest and penalties related to its uncertain tax positions related to intercompany loan interest and potential transfer pricing exposure related to its Korean subsidiary.

The Company is in the process of dissolving and repatriating the unremitted earnings of its Korean subsidiary. As such, it accrues U.S. tax for the possible future repatriation of these unremitted foreign earnings. If the Company were to repatriate these earnings, it expects to have foreign withholding at a rate of 16.5% and does not expect any taxes to be paid in the U.S. when repatriated as it currently is expected to be a return of capital.