Income Taxes	6 Months Ended
Jul. 02, 2016
Income Tax Disclosure [Abstract]
Income Taxes	7. Income Taxes Provision for Income Tax. The Company calculates its interim tax provision in accordance with the provisions of ASC 740-270, Income Taxes; Interim Reporting. For interim periods, the Company estimates its annual effective income tax rate and applies the estimated rate to the year-to-date income or loss before income taxes. The Company also computes the tax provision or benefit related to items reported separately and recognizes the items net of their related tax effect in the interim periods in which they occur. The Company also recognizes the effect of changes in enacted tax laws or rates in the interim periods in which the changes occur. The Company recorded a tax benefit of $47 for the six months ended July 2, 2016 and a provision for income tax of $32 thousand for the six months ended July 4, 2015. Deferred Income Taxes. The Company accounts for income taxes in accordance with ASC topic 740, Income Taxes (“ASC 740”), which requires that deferred tax assets and liabilities be recognized using enacted tax rates for the effect of temporary differences between the book and tax bases of recorded assets and liabilities. ASC 740 also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some or all of the deferred tax assets will not be realized. In the fourth quarter of fiscal year 2014, the Company's management determined, based on the Company's recent history of earnings coupled with its forecasted profitability that it is more likely than not that all of its federal and the majority of its state deferred tax assets will be realized in the foreseeable future. Accordingly, in the fourth quarter of fiscal year 2014, the Company released $9.2 million of valuation allowance against most of its deferred tax assets except for the California Research and Development Credits. The Company maintains the same positions as of July 2, 2016 and will reevaluate the position on a quarterly basis. Uncertain Tax Positions. The Company accounts for its uncertain tax positions in accordance with ASC 740. As of January 2, 2016, the Company had $0.9 million of unrecognized tax benefits of which $0.4 million of unrecognized tax benefits would result in a change in the Company’s effective tax rate if recognized in future years. The Company is not aware of any other uncertain tax positions that could result in significant additional payments, accruals, or other material deviation in this estimate during the fiscal year. The Company files U.S. federal and state returns. The tax years 2008 to 2015 remain open in several jurisdictions, none of which have individual significance.

7. Income Taxes

Provision for Income Tax.

The Company calculates its interim tax provision in accordance with the provisions of ASC 740-270, Income Taxes; Interim Reporting. For interim periods, the Company estimates its annual effective income tax rate and applies the estimated rate to the year-to-date income or loss before income taxes. The Company also computes the tax provision or benefit related to items reported separately and recognizes the items net of their related tax effect in the interim periods in which they occur. The Company also recognizes the effect of changes in enacted tax laws or rates in the interim periods in which the changes occur. The Company recorded a tax benefit of $47 for the six months ended July 2, 2016 and a provision for income tax of $32 thousand for the six months ended July 4, 2015.

Deferred Income Taxes.

The Company accounts for income taxes in accordance with ASC topic 740, Income Taxes (“ASC 740”), which requires that deferred tax assets and liabilities be recognized using enacted tax rates for the effect of temporary differences between the book and tax bases of recorded assets and liabilities. ASC 740 also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some or all of the deferred tax assets will not be realized. In the fourth quarter of fiscal year 2014, the Company's management determined, based on the Company's recent history of earnings coupled with its forecasted profitability that it is more likely than not that all of its federal and the majority of its state deferred tax assets will be realized in the foreseeable future. Accordingly, in the fourth quarter of fiscal year 2014, the Company released $9.2 million of valuation allowance against most of its deferred tax assets except for the California Research and Development Credits. The Company maintains the same positions as of July 2, 2016 and will reevaluate the position on a quarterly basis.

Uncertain Tax Positions.

The Company accounts for its uncertain tax positions in accordance with ASC 740. As of January 2, 2016, the Company had $0.9 million of unrecognized tax benefits of which $0.4 million of unrecognized tax benefits would result in a change in the Company’s effective tax rate if recognized in future years.

The Company is not aware of any other uncertain tax positions that could result in significant additional payments, accruals, or other material deviation in this estimate during the fiscal year.

The Company files U.S. federal and state returns. The tax years 2008 to 2015 remain open in several jurisdictions, none of which have individual significance.