Note 8 - Retirement Benefits	12 Months Ended
Dec. 29, 2013
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	8. Retirement Benefits The Company provides a qualified defined contribution plan covering substantially all U.S.-based full-time employees, except officers and certain other employees. Upon approval by the Board of Directors, a discretionary contribution based on eligible wages may be funded annually. The plan also offers a savings feature with Company matching contributions. Assets of this plan are held by an independent trustee for the sole benefit of participating employees. A nonqualified plan is provided for officers and certain other employees. Upon approval by the Board of Directors, a discretionary contribution based on eligible wages may be made annually. This plan also includes provisions for salary deferrals and Company matching contributions. In addition to the plans above, the Company also provides a qualified plan and a nonqualified plan to certain U.S-based temporary employees. The liability for the nonqualified plans was $135.6 million and $110.6 million as of year-end 2013 and 2012, respectively, and is included in current accrued payroll and related taxes and noncurrent accrued retirement benefits. The cost of participants’ earnings on this liability, which were included in SG&A expenses, were earnings of $15.7 million and $10.2 million in 2013 and 2012, respectively, and losses of $0.9 million in 2011. In connection with the administration of these plans, the Company has purchased company-owned variable universal life insurance policies insuring the lives of certain officers and key employees. The cash surrender value of these policies, which is based primarily on investments in mutual funds and can only be used for payment of the Company’s obligations related to the non-qualified deferred compensation plan noted above, was $134.0 million and $106.3 million at year-end 2013 and 2012, respectively. The cash surrender value of these insurance policies is included in other assets. Tax-free earnings on these assets, which were included in SG&A expenses, were $17.4 million in 2013, $10.3 million in 2012 and losses of $1.8 million in 2011. The net expense for retirement benefits for the qualified and nonqualified plans, including Company matching and discretionary contributions for full-time employees, totaled $6.2 million in 2013, $9.7 million in 2012 and $9.9 million in 2011. The expense related to retirement plan contributions for temporary employees is reimbursed by our customers. In addition, the Company also has several defined benefit pension plans in locations outside of the United States. The total projected benefit obligation, assets and unfunded liability for these plans as of year-end 2013 were $13.7 million, $9.2 million and $4.5 million, respectively. The total projected benefit obligation, assets and unfunded liability for these plans as of year-end 2012 were $14.2 million, $8.2 million and $6.0 million, respectively. Total pension expense for these plans was $0.7 million, $1.1 million and $0.9 million in 2013, 2012 and 2011, respectively. Pension contributions and the amount of accumulated other comprehensive income expected to be recognized in 2014 are not significant.

Note 8 - Retirement Benefits

12 Months Ended

Dec. 29, 2013

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

8. Retirement Benefits

The Company provides a qualified defined contribution plan covering substantially all U.S.-based full-time employees, except officers and certain other employees. Upon approval by the Board of Directors, a discretionary contribution based on eligible wages may be funded annually. The plan also offers a savings feature with Company matching contributions. Assets of this plan are held by an independent trustee for the sole benefit of participating employees.

A nonqualified plan is provided for officers and certain other employees. Upon approval by the Board of Directors, a discretionary contribution based on eligible wages may be made annually. This plan also includes provisions for salary deferrals and Company matching contributions.

In addition to the plans above, the Company also provides a qualified plan and a nonqualified plan to certain U.S-based temporary employees.

The liability for the nonqualified plans was $135.6 million and $110.6 million as of year-end 2013 and 2012, respectively, and is included in current accrued payroll and related taxes and noncurrent accrued retirement benefits. The cost of participants’ earnings on this liability, which were included in SG&A expenses, were earnings of $15.7 million and $10.2 million in 2013 and 2012, respectively, and losses of $0.9 million in 2011. In connection with the administration of these plans, the Company has purchased company-owned variable universal life insurance policies insuring the lives of certain officers and key employees. The cash surrender value of these policies, which is based primarily on investments in mutual funds and can only be used for payment of the Company’s obligations related to the non-qualified deferred compensation plan noted above, was $134.0 million and $106.3 million at year-end 2013 and 2012, respectively. The cash surrender value of these insurance policies is included in other assets. Tax-free earnings on these assets, which were included in SG&A expenses, were $17.4 million in 2013, $10.3 million in 2012 and losses of $1.8 million in 2011.

The net expense for retirement benefits for the qualified and nonqualified plans, including Company matching and discretionary contributions for full-time employees, totaled $6.2 million in 2013, $9.7 million in 2012 and $9.9 million in 2011. The expense related to retirement plan contributions for temporary employees is reimbursed by our customers.

In addition, the Company also has several defined benefit pension plans in locations outside of the United States. The total projected benefit obligation, assets and unfunded liability for these plans as of year-end 2013 were $13.7 million, $9.2 million and $4.5 million, respectively. The total projected benefit obligation, assets and unfunded liability for these plans as of year-end 2012 were $14.2 million, $8.2 million and $6.0 million, respectively. Total pension expense for these plans was $0.7 million, $1.1 million and $0.9 million in 2013, 2012 and 2011, respectively. Pension contributions and the amount of accumulated other comprehensive income expected to be recognized in 2014 are not significant.