Annual report pursuant to Section 13 and 15(d)

Discontinued Operations - Narrative (Details)

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Discontinued Operations - Narrative (Details) - AutoMD - Discontinued Operations, Disposed of by Means Other than Sale - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Severance costs $ 221    
Contract termination cost 164    
Loss from operations 173    
Net loss attributable to noncontrolling interest $ (59) $ 1,334 $ 1,143