Note 3 - Acquisition of Businesses (Details) - Terra Power Preliminary Purchase Price Allocation (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Dec. 29, 2012	Sep. 26, 2012 Terra Power [Member]
Note 3 - Acquisition of Businesses (Details) - Terra Power Preliminary Purchase Price Allocation [Line Items]
Cash			$ 105
Current assets, net			1,625
Property, plant and equipment			457
Goodwill	131,850	133,592	4,562
Other intangibles			4,064
Current liabilities			(213)
	$ 23,865		$ 10,600

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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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The amount of identifiable intangible assets recognized as of the acquisition date.

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-SubTopic 20

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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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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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