The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jul. 22, 2015	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Goodwill [Line Items]
Goodwill impairment		$ 10,830	$ 0	$ 10,830	$ 0
Amortization expense		$ 76		$ 165	$ 0
Farncombe Entities [Member]
Goodwill [Line Items]
Goodwill acquired during period	$ 3,400