Assets and Liabilities, Lessee (Detail) - USD ($)	12 Months Ended
	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 17,568,000	$ 18,474	$ 19,099	$ 20,279	$ 0
Total lease liabilities	$ 17,173,000
Operating Lease, Weighted Average Remaining Lease Term	6 years 5 months 15 days
Operating Lease, Weighted Average Discount Rate, Percent	4.07%
Operating Lease, Liability, Current	$ 4,500,000
Operating lease liabilities	12,624,000	$ 13,454	$ 14,093	$ 15,108	$ 0
Operating Lease, Payments