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Discontinued Operations (Components of Assets and Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 29, 2014
Dec. 28, 2013
Discontinued Operations and Disposal Groups [Abstract]    
Accounts receivable, net $ 0 $ 9
Prepaid and other current assets 88 123
Assets of discontinued operations - current 88 132
Property, plant and equipment, net 0 33
Assets of discontinued operations - long-term 0 33
Accrued compensation and related liabilities 99 627
Other current liabilities 5 1,386
Liabilities of discontinued operations - current 104 2,013
Net assets $ (16) $ (1,848)