Excess Of Fair Value Over Carrying Value Of Invested Capital

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Sensitivity analysis decrease in long term growth rate, percent

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The increase in discount rate, resulting from a sensitivity analysis.

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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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Amount of increase (decrease) in plan assets from purchases, sales and settlement of plan obligations.

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Percentage above fair value that an investor seeking to acquire control of an entity will pay, used as an input to measure fair value.

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

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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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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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The amount of a reclassification adjustment made to prior period financial statement amounts.

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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) - USD ($)	12 Months Ended
	Jan. 02, 2016	Jan. 02, 2016	Dec. 27, 2014	Dec. 28, 2013	Sep. 28, 2015	Sep. 27, 2015
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
Tooling [Member]
Property, Plant and Equipment, Useful Life		5 years
Computer Equipment [Member]
Property, Plant and Equipment, Useful Life		3 years
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		7 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
Electronics Non Silicon Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital						148.00%
Electronics (Silicon) Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital						95.00%
Passenger Car [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital						188.00%
Commercial Vehicle Products [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital						218.00%
Sensors [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital						76.00%
Relay Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital						26.00%
Custom Products Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital						12.00%
Fair Value Inputs, Discount Rate		14.70%
Fair Value Inputs, Control Premium		3.00%
Fuse Unit [Member]
Excess Of Fair Value Over Carrying Value Of Invested Capital						198.00%
All Reporting Units Other Than Sensor and Relay Unit [Member]
Fair Value Inputs, Discount Rate		11.70%
Fair Value Inputs, Long-term Revenue Growth Rate		3.00%
Sensor and Relay Unit [Member]
Fair Value Inputs, Discount Rate		13.70%
Fair Value Inputs, Control Premium		2.00%
Patents Licenses And Software [Member]
Finite-Lived Intangible Asset, Useful Life		11 years 219 days	11 years 255 days
Distribution Rights [Member]
Finite-Lived Intangible Asset, Useful Life		12 years 146 days	12 years 146 days
Reclassification of Deferred Tax Assets from Current to Noncurrent [Member] \| Fiscal Year Ended 2014 [Member]
Prior Period Reclassification Adjustment		$ 17,500,000
Goodwill, Impaired, Accumulated Impairment Loss	$ 0	$ 0	$ 0	$ 0	$ 0
Number of Reportable Segments		8
Sensitivity Analysis Increase In Discount Rate					1.00%
Sensitivity Analysis Decrease In Long Term Growth Rate, Percent					1.00%
Finite-Lived Intangible Asset, Useful Life		12 years 146 days	12 years 182 days
Defined Benefit Plan, Purchases, Sales, and Settlements		$ 29,900,000
Advertising Expense		2,300,000	$ 2,800,000	1,600,000
Shipping, Handling and Transportation Costs		7,000,000	6,700,000	6,500,000
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax		7,900,000	4,600,000	5,200,000
Other Nonoperating Income (Expense)	$ 5,417,000	$ 5,417,000	$ 6,644,000	$ 4,646,000