Note 3 - Inventories (Details) - Components of Inventories (USD $) In Thousands, unless otherwise specified	Mar. 29, 2014	Dec. 28, 2013
Components of Inventories [Abstract]
Raw material	$ 29,691	$ 28,228
Work in process	18,542	17,576
Finished goods	50,888	46,787
Total inventories	$ 99,121	$ 92,591

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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