Long-Term Debt (Detail) - USD ($)	6 Months Ended
	Jan. 01, 2022	Jul. 03, 2021	Nov. 24, 2020	Aug. 14, 2020
Debt Disclosure [Line Items]
Increase in revolving line of credit				$ 93,000,000
Line of Credit Facility, Amount Outstanding	$ 97,000,000	$ 90,900,000
Additional availability of line of credit	17,300,000	2,100,000
Letters of Credit Outstanding, Amount	300,000	300,000
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate			552.00%	4.85%
2022 (1)	1,076,000
2023	2,190,000
2024	2,239,000
2025	2,290,000
2026	1,187,000
Thereafter	97,009,000
Total debt	105,991,000
Unamortized debt issuance costs	(574,000)
Long-term debt, net of debt issuance costs	105,417,000
Equipment Term Loan
Debt Disclosure [Line Items]
Debt Instrument, Periodic Payment, Principal	94,000
Long-term debt, net of debt issuance costs	3,800,000	$ 4,200,000		$ 5
JZ Equipment Term Loan (Domain) [Domain]
Debt Disclosure [Line Items]
Debt Instrument, Periodic Payment, Principal	100,000
Long-term debt, net of debt issuance costs	$ 5,200,000		$ 6,000,000
Debt Instrument, Basis Spread on Variable Rate, 2.00% | Line of Credit | Fixed Rate
Debt Disclosure [Line Items]
Variable rate on line of credit facility (percent)	2.50%
Minimum
Debt Disclosure [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	3.25%	3.25%
Maximum
Debt Disclosure [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	5.52%	5.52%