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Discontinued Operations (Components of Assets and Liabilities) (Details) - USD ($)
$ in Thousands
Mar. 28, 2015
Dec. 27, 2014
Discontinued Operations and Disposal Groups [Abstract]    
Prepaid and other current assets $ 12 $ 8
Assets of discontinued operations - current 12 8
Accrued compensation and related liabilities 68 70
Liabilities of discontinued operations - current 68 70
Net assets $ (56) $ (62)