CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Oct. 30, 2021	Oct. 24, 2020
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	$ 7,328	$ 3,360
Other comprehensive income:
Unrealized gains on interest rate swaps, net of tax	791	594
Amortization of pension actuarial loss, net of tax	88	101
Comprehensive income	$ 8,207	$ 4,055