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Share-Based Compensation (Detail) - USD ($)			3 Months Ended		6 Months Ended
Share-Based Compensation (Detail) - USD ($)	Aug. 09, 2021	Jul. 24, 2020	Jan. 01, 2022	Dec. 26, 2020	Jan. 01, 2022	Dec. 26, 2020	Jul. 23, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-based Compensation Expense			$ 600,000		$ 600,000
Unrecognized Share-based Compensation, Period for Recognition					2 years 2 months 4 days
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SARs Granted	165,000	155,000
Strike Price	$ 7.17						$ 6.94
Fair Value	$ 2.73	$ 2.32
Share-based Compensation Expense			$ 75,000	$ 51,000	$ 143,000	$ 114,000