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Long-term Debt - Additional Information (Detail) - USD ($)		1 Months Ended	12 Months Ended
	Oct. 01, 2017	Sep. 30, 2006	Jun. 29, 2017	Jun. 30, 2016	Feb. 07, 2008
Mortgage Facility Tranche A [Member]
Debt Disclosure [Line Items]
Amounts of term loans					$ 36,000,000
Mortgage Facility maturity date			Mar. 01, 2023
Interest rate			7.63%
Debt obligation outstanding			$ 14,200,000	$ 16,600,000
Mortgage Facility Tranche B [Member]
Debt Disclosure [Line Items]
Amounts of term loans					9,000,000
Mortgage Facility maturity date			Mar. 01, 2023
Mortgage facility interest			One month LIBOR plus 3.50% per annum or 4.25%
Mortgage Facility interest rate LIBOR			3.50%
Debt instrument fixed rate			4.25%
Debt obligation outstanding			$ 3,550,000	4,150,000
Mortgage Facility [Member]
Debt Disclosure [Line Items]
Amounts of term loans					$ 45,000,000
Mortgage Facility maturity date			Mar. 01, 2023
Mortgage Facility contain covenants to maintain specified net worth			$ 110,000,000
Carrying amount of assets pledged as collateral			$ 73,427,000
Selma, Texas Properties [Member]
Debt Disclosure [Line Items]
Capital lease recorded as debt obligation		$ 14,300,000
Selling price of Texas properties sold to related party partnerships		$ 14,300,000
Renewal options of Texas properties		Three five-year term
Lease term of Texas properties		10 years
Option percentage of fair value to purchase the properties			95.00%
Option percentage of fair value to purchase the properties in certain circumstances			100.00%
Debt obligation outstanding			$ 11,058,000	$ 11,540,000
Minimum amount accepted for repurchase			$ 14,300,000
Lease period for renewal option exercised			Two five-year term
Lease period for renewal option remaining			One five-year
Selma, Texas Properties [Member] | Scenario Forecast [Member]
Debt Disclosure [Line Items]
Renewed lease monthly installments	$ 103,000

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Property Sold To Related Party

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Face (par) amount of debt instrument at time of issuance.

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