Assets and Liabilities, Lessee (Detail) - USD ($)	12 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Sep. 28, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 15,745,000	$ 17,568,000	$ 21,400,000
Total lease liabilities	$ 15,653,000	$ 17,173,000	$ 20,400,000
Operating Lease, Weighted Average Remaining Lease Term	5 years 11 months 12 days	6 years 5 months 15 days
Operating Lease, Weighted Average Discount Rate, Percent	4.05%	4.07%
Operating Lease, Payments	$ 4,976,000	$ 4,237,000