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Note 17 - Employee Benefit Plans (Details Textual) $ in Thousands | 12 Months Ended
--- | ---
Dec. 30, 2018 USD ($) | Dec. 31, 2017 USD ($) | Jan. 01, 2017 USD ($)
Defined Contribution Plan Eligibility Period |  | 180 days |
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax, Total | $ 43,610 | $ 56,554 |
Foreign Plan [Member] |  |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 4,095 | 2,812 |
Pension Cost (Reversal of Cost) | 1,700 | 1,900 | $ 1,200
Defined Benefit Plan, Funded (Unfunded) Status of Plan, Total | (36,195) | (13,382) |
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax, Total | $ 36,704 | 47,972 |
Number of Defined Benefit Plans | 3,000,000 |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax, Total | $ 11,300 |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | 9,900 |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | (1,400) |  |
Defined Benefit Plan, Indexation Benefit |  | 32,700 |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | 4,200 |  |
Defined Benefit Plan, Accumulated Benefit Obligation | 284,581 | 313,257 |
Foreign Plan [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |
AOCI Tax, Attributable to Parent | 12,000 |  |
UNITED STATES |  |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 2,000 |  |
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax, Total | 1,700 |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | (1,400) |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | $ (300) |  |
Normal Retirement Age | 65 |  |
Early Retirement Age | 55 |  |
Minimum Period Of Service For Entitlement In Plan | 15 years |  |
Minimum Period Under Death Benefit Feature | 10 years |  |
Maximum Period For Death Benefits Payable To Designated Beneficiary | 10 years |  |
Defined Benefit Plan, Accumulated Benefit Obligation | $ 29,100 | 31,900 |
Deferred Compensation, Excluding Share-based Payments and Retirement Benefits [Member] |  |  |
Deferred Compensation Liability, Current and Noncurrent, Total | 28,700 | 31,900 |
Investment in Insurance Instruments | 26,400 | 28,000 |
The 401(k) Plan [Member] |  |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 3,200 | 3,000 | 3,100
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 0 | $ 0 | $ 0

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