Changes to Goodwill by Acquisition (Detail) $ in Thousands	9 Months Ended
	Oct. 08, 2016 USD ($)
Goodwill [Line Items]
Change in goodwill related to acquisitions	$ 652
Dave’s Killer Bread
Goodwill [Line Items]
Change in goodwill related to acquisitions	155
Alpine Valley Bread Company
Goodwill [Line Items]
Change in goodwill related to acquisitions	497
Working Capital Adjustments
Goodwill [Line Items]
Change in goodwill related to acquisitions	557
Working Capital Adjustments | Dave’s Killer Bread
Goodwill [Line Items]
Change in goodwill related to acquisitions	60
Working Capital Adjustments | Alpine Valley Bread Company
Goodwill [Line Items]
Change in goodwill related to acquisitions	497
Acquisition Related Tax Adjustments
Goodwill [Line Items]
Change in goodwill related to acquisitions	(315)
Acquisition Related Tax Adjustments | Dave’s Killer Bread
Goodwill [Line Items]
Change in goodwill related to acquisitions	(315)
Property, Plant and Equipment Final Fair Value Adjustments
Goodwill [Line Items]
Change in goodwill related to acquisitions	410
Property, Plant and Equipment Final Fair Value Adjustments | Dave’s Killer Bread
Goodwill [Line Items]
Change in goodwill related to acquisitions	$ 410