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Discontinued Operation (Details) (Composites LLC [Member], USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Composites LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Settlement liabilities			$ 2,577,000
Loss contingency accrual carrying value adjustments		1,574,000
Total amount paid for the claims		647,000
Operating (loss) income	$ (96,000)	$ 1,194,000	$ (1,520,000)

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The adjustments (reductions) made in the period which reduced loss contingency liabilities.

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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The portion of the carrying amount as of the balance sheet date of the combined total of loss contingency liabilities which is expected to be resolved within one year or the normal operating cycle, if longer.

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