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Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity referred as other than Toll charge.

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Represents percentage of ownership in the long -term investment.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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- Definition

Amount of loss contingency liability expected to be resolved after one year or beyond the normal operating cycle, if longer.

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale.

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For an unclassified balance sheet, this item represents investments in common and preferred stocks and other forms of securities that provide ownership interests in a corporation.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Cost incurred during the reporting period in transporting goods and services to customers. Includes freight-out costs.

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Note 1 - Summary of Significant Accounting Policies and Other Information (Details Textual) $ in Thousands, € in Millions	3 Months Ended	12 Months Ended
	Dec. 30, 2017 USD ($)	Dec. 29, 2018	Dec. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 02, 2016 USD ($)	Dec. 30, 2017 EUR (€)	Oct. 01, 2017	Dec. 31, 2016 EUR (€)
Number of Reporting Units			7
Finite-Lived Intangible Asset, Useful Life
Foreign Currency Transaction Gain (Loss), before Tax			$ (2,376)	$ (472)	$ 1,465
Loss Contingency, Accrual, Noncurrent	$ 1,100		$ 1,100	$ 1,500		€ 0.9		€ 1.4
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			35.00%	35.00%	35.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	47,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability, Toll Charge	49,000		$ 49,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability, Other Than Toll Charge	(2,000)		(1,962)
Income Tax Expense (Benefit)			84,518	18,786	26,082
Accounting Standards Update 2016-09 [Member]
Income Tax Expense (Benefit)			2,000
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%
Selling, General and Administrative Expenses [Member]
Advertising Expense			2,900	2,900	2,300
Shipping, Handling and Transportation Costs			$ 10,900	$ 9,100	$ 7,000
Patents, Licenses, and Software [Member]
Finite-Lived Intangible Asset, Useful Life			11 years 146 days	11 years 146 days
Distribution Rights [Member]
Finite-Lived Intangible Asset, Useful Life			12 years 36 days	12 years 36 days
Electronics Non Silicon Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital							161.00%
Electronics (Silicon) Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital							314.00%
Passenger Car [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital							247.00%
Commercial Vehicle Products [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital							21800.00%
Sensors [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital							10000.00%
Relay Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital							2500.00%
Fuse Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital							24800.00%
Custom Products Reporting Unit [Member] \| Industrial [Member]
Impairment of Intangible Assets (Excluding Goodwill)				$ 6,015
Custom Products Reporting Unit [Member] \| Customer Relationships [Member] \| Industrial [Member]
Impairment of Intangible Assets (Excluding Goodwill)				2,200
Custom Products Reporting Unit [Member] \| Trade Names [Member] \| Industrial [Member]
Impairment of Intangible Assets (Excluding Goodwill)				$ 3,800
Minimum [Member] \| Trademarks and Trade Names [Member]
Finite-Lived Intangible Asset, Useful Life			5 years
Minimum [Member] \| Patents, Licenses, and Software [Member]
Finite-Lived Intangible Asset, Useful Life			5 years
Minimum [Member] \| Distribution Rights [Member]
Finite-Lived Intangible Asset, Useful Life			3 years
Maximum [Member] \| Trademarks and Trade Names [Member]
Finite-Lived Intangible Asset, Useful Life			20 years
Maximum [Member] \| Patents, Licenses, and Software [Member]
Finite-Lived Intangible Asset, Useful Life			17 years
Maximum [Member] \| Distribution Rights [Member]
Finite-Lived Intangible Asset, Useful Life			20 years
Building [Member]
Property, Plant and Equipment, Useful Life			21 years
Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment, Useful Life			7 years
Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment, Useful Life			9 years
Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life			7 years
Tools, Dies and Molds [Member]
Property, Plant and Equipment, Useful Life			5 years
Computer Equipment [Member]
Property, Plant and Equipment, Useful Life			3 years
Other Noncurrent Assets [Member]
Marketable Securities	$ 8,000		$ 8,000
Polytronics [Member]
Long-term Investment, Ownership Percentage	7.20%		7.20%	7.20%		7.20%		7.20%
Marketable Securities, Equity Securities	$ 11,000		$ 11,000	$ 10,400		€ 9.2		€ 10.0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax			$ (1,000)	$ (800)