CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 29, 2022	Jan. 23, 2021	Jan. 29, 2022	Jan. 23, 2021
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	$ 10,129	$ 4,555	$ 17,457	$ 7,916
Other comprehensive income:
Unrealized gains on interest rate swaps, net of tax	759	501	1,550	1,094
Amortization of pension actuarial loss, net of tax	88	101	176	203
Comprehensive income	$ 10,976	$ 5,157	$ 19,183	$ 9,213