Employee Benefit Plans	3 Months Ended
Mar. 31, 2018
Defined Benefit Plan [Abstract]
Employee Benefit Plans	EMPLOYEE BENEFIT PLANS Defined Contribution Plans The Company sponsors a 401(k) defined contribution plan that covers approximately 85% of the Company's current associates. This plan includes a mandatory Company match on the first 1% of participants' contributions. The Company matches the next 2% of participants' contributions if the Company meets prescribed earnings levels. The plan also provides for additional Company contributions above the 3% level if the Company attains certain additional performance targets. Matching contribution expense for this 401(k) plan was $264 and $233 for the three months ended March 31, 2018 and April 1, 2017, respectively. Additionally, the Company sponsors a 401(k) defined contribution plan that covers approximately 15% of the Company's current associates at one facility who are under a collective-bargaining agreement. Under this plan, the Company generally matches participants' contributions, on a sliding scale, up to a maximum of 2.75% of the participant's earnings. Matching contribution expense for the collective-bargaining 401(k) plan was $29 and $18 for the three months ended March 31, 2018 and April 1, 2017, respectively. Non-Qualified Retirement Savings Plan The Company sponsors a non-qualified retirement savings plan that allows eligible associates to defer a specified percentage of their compensation. The obligations owed to participants under this plan were $17,002 at March 31, 2018 and $17,010 at December 30, 2017 and are included in other long-term liabilities in the Company's Consolidated Condensed Balance Sheets. The obligations are unsecured general obligations of the Company and the participants have no right, interest or claim in the assets of the Company, except as unsecured general creditors. The Company utilizes a Rabbi Trust to hold, invest and reinvest deferrals and contributions under the plan. Amounts are invested in Company-owned life insurance in the Rabbi Trust and the cash surrender value of the policies was $18,067 at March 31, 2018 and $18,232 at December 30, 2017 and is included in other assets in the Company's Consolidated Condensed Balance Sheets. Multi-Employer Pension Plan The Company contributes to a multi-employer pension plan under the terms of a collective-bargaining agreement that covers its union-represented employees. Expenses related to the multi-employer pension plan were $92 and $66 for the three months ended March 31, 2018 and April 1, 2017, respectively.

EMPLOYEE BENEFIT PLANS

Defined Contribution Plans

The Company sponsors a 401(k) defined contribution plan that covers approximately 85% of the Company's current associates. This plan includes a mandatory Company match on the first 1% of participants' contributions. The Company matches the next 2% of participants' contributions if the Company meets prescribed earnings levels. The plan also provides for additional Company contributions above the 3% level if the Company attains certain additional performance targets. Matching contribution expense for this 401(k) plan was $264 and $233 for the three months ended March 31, 2018 and April 1, 2017, respectively.

Additionally, the Company sponsors a 401(k) defined contribution plan that covers approximately 15% of the Company's current associates at one facility who are under a collective-bargaining agreement. Under this plan, the Company generally matches participants' contributions, on a sliding scale, up to a maximum of 2.75% of the participant's earnings. Matching contribution expense for the collective-bargaining 401(k) plan was $29 and $18 for the three months ended March 31, 2018 and April 1, 2017, respectively.

Non-Qualified Retirement Savings Plan

The Company sponsors a non-qualified retirement savings plan that allows eligible associates to defer a specified percentage of their compensation. The obligations owed to participants under this plan were $17,002 at March 31, 2018 and $17,010 at December 30, 2017 and are included in other long-term liabilities in the Company's Consolidated Condensed Balance Sheets. The obligations are unsecured general obligations of the Company and the participants have no right, interest or claim in the assets of the Company, except as unsecured general creditors. The Company utilizes a Rabbi Trust to hold, invest and reinvest deferrals and contributions under the plan. Amounts are invested in Company-owned life insurance in the Rabbi Trust and the cash surrender value of the policies was $18,067 at March 31, 2018 and $18,232 at December 30, 2017 and is included in other assets in the Company's Consolidated Condensed Balance Sheets.

Multi-Employer Pension Plan

The Company contributes to a multi-employer pension plan under the terms of a collective-bargaining agreement that covers its union-represented employees. Expenses related to the multi-employer pension plan were $92 and $66 for the three months ended March 31, 2018 and April 1, 2017, respectively.