Goodwill and Other Intangible Assets (Detail) - USD ($)	3 Months Ended
	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Sep. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 0			$ 230,000
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount	2,941,000	$ 8,312,000
Accumulated Amortization	(2,284,000)	(5,163,000)
Impairment of Intangible Assets, Finite-lived	0	(2,492,000)	$ (2,500,000)
Derecognition Favorable Lease per ASC 842	(700,000)
Net Carrying Amount	$ 0	657,000
Non-Compete Agreements
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount		568,000
Accumulated Amortization		(568,000)
Impairment of Intangible Assets, Finite-lived		0
Net Carrying Amount		0
Customer Relationships
Finite-lived Intangible Assets [Roll Forward]
Amortization Period in Years	10 years
Gross Carrying Amount		4,803,000
Accumulated Amortization		(2,311,000)
Impairment of Intangible Assets, Finite-lived		(2,492,000)
Net Carrying Amount		0
Favorable Lease Agreements
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount	$ 2,941,000	2,941,000
Accumulated Amortization	(2,284,000)	(2,284,000)
Impairment of Intangible Assets, Finite-lived	0	0
Derecognition Favorable Lease per ASC 842	(657,000)
Net Carrying Amount	$ 0	$ 657,000
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