CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Jul. 31, 2021	Jul. 25, 2020
Statement of Comprehensive Income [Abstract]
Net income		$ 19,994	$ 24,939
Other comprehensive income (loss):
Unrealized losses on interest rate swaps, net of tax	[1]	1,428	(659)
Amortization of pension actuarial loss, net of tax	[2]	409	397
Pension remeasurement, net of tax	[3]	(2,559)	(1,307)
Pension settlement loss, net of tax	[4]	409	1,160
Total other comprehensive loss		(313)	(409)
Comprehensive income		$ 19,681	$ 24,530

[1] (1)Amount is net of tax of $604 and $262 for 2021and 2020, respectively.

[2] Amounts are net of tax of $179 and $158 for 2021 and 2020, respectively. All amounts are reclassified from accumulated other comprehensive loss to operating and administrative expense.

[3] Amounts are net of tax of $1,484 and $536 for 2021 and 2020, respectively.

[4] Amounts are net of tax of $178 and $444 for 2021 and 2020, respectively. All amounts are reclassified from accumulated other comprehensive loss to operating and administrative expense.