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Restructuring and Asset Impairment- Schedule of Activity of Restructuring Costs (Parenthetical) (Detail) (USD $)
3 Months Ended 9 Months Ended
Oct. 04, 2014
Oct. 04, 2014
Restructuring Cost and Reserve [Line Items]    
Provision for severance $ 40,000 $ 306,000
Reduction in goodwill   (1,300,000)
Reduction in restructuring charges   (100,000)
Food Distribution Segment [Member]
   
Restructuring Cost and Reserve [Line Items]    
Provision for severance   100,000
Retail Segment [Member]
   
Restructuring Cost and Reserve [Line Items]    
Provision for severance   $ 200,000