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 Other Intangible Assets (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
Goodwill and Other Intangible Assets (Detail) - USD ($)	Dec. 31, 2016	Dec. 26, 2015	Dec. 31, 2016	Dec. 26, 2015	Jul. 02, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 9,957,000		$ 9,957,000		$ 9,957,000
Amortization of Intangible Assets	282,000	$ 282,000	564,000	$ 564,000
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount	8,312,000		8,312,000		8,312,000
Accumulated Amortization	(2,948,000)		(2,948,000)		(2,384,000)
Net Carrying Amount	5,364,000		5,364,000		5,928,000
Non-Compete Agreements
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount	568,000		568,000		568,000
Accumulated Amortization	(413,000)		(413,000)		(343,000)
Net Carrying Amount	155,000		$ 155,000		$ 225,000
Customer Relationships
Finite-lived Intangible Assets [Roll Forward]
Amortization Period in Years			10 years		10 years
Gross Carrying Amount	4,803,000		$ 4,803,000		$ 4,803,000
Accumulated Amortization	(1,350,000)		(1,350,000)		(1,110,000)
Net Carrying Amount	3,453,000		3,453,000		3,693,000
Favorable Lease Agreements
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount	2,941,000		2,941,000		2,941,000
Accumulated Amortization	(1,185,000)		(1,185,000)		(931,000)
Net Carrying Amount	$ 1,756,000		$ 1,756,000		$ 2,010,000
Minimum \| Non-Compete Agreements
Finite-lived Intangible Assets [Roll Forward]
Amortization Period in Years			3 years
Minimum \| Favorable Lease Agreements
Finite-lived Intangible Assets [Roll Forward]
Amortization Period in Years			4 years
Maximum \| Non-Compete Agreements
Finite-lived Intangible Assets [Roll Forward]
Amortization Period in Years			5 years
Maximum \| Favorable Lease Agreements
Finite-lived Intangible Assets [Roll Forward]
Amortization Period in Years			7 years