Note 3 - Acquisition of Businesses (Details) - Hamlin Preliminary Purchase Price Allocation (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Note 3 - Acquisition of Businesses (Details) - Hamlin Preliminary Purchase Price Allocation [Line Items]
Goodwill	$ 186,667	$ 133,592
Hamlin, Inc. [Member] \| Distribution Rights [Member]
Note 3 - Acquisition of Businesses (Details) - Hamlin Preliminary Purchase Price Allocation [Line Items]
Amortizable intangible assets	33,098
Hamlin, Inc. [Member] \| Patents and Licenses [Member]
Note 3 - Acquisition of Businesses (Details) - Hamlin Preliminary Purchase Price Allocation [Line Items]
Amortizable intangible assets	15,365
Hamlin, Inc. [Member] \| Trademarks [Member]
Note 3 - Acquisition of Businesses (Details) - Hamlin Preliminary Purchase Price Allocation [Line Items]
Amortizable intangible assets	6,483
Hamlin, Inc. [Member]
Note 3 - Acquisition of Businesses (Details) - Hamlin Preliminary Purchase Price Allocation [Line Items]
Cash	15,473
Current assets, net	31,210
Property, plant and equipment	22,767
Goodwill	53,129
Non-current assets	1,390
Current liabilities	(8,816)
Non-current liabilities	(9,626)
	$ 160,473

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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-Topic 805

-SubTopic 20

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Amount of liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount after accumulated impairment loss of 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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