CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Jul. 25, 2020	Jul. 27, 2019
Statement of Comprehensive Income [Abstract]
Net income		$ 24,939	$ 25,539
Other comprehensive income (loss):
Unrealized losses on interest rate swaps, net of tax	[1]	(659)	0
Amortization of pension actuarial loss, net of tax	[2]	397	423
Pension remeasurement, net of tax	[3]	(1,307)	(888)
Pension settlement loss, net of tax	[4]	1,160	308
Total other comprehensive loss		(409)	(157)
Comprehensive income		$ 24,530	$ 25,382

[1] (1)Amount is net of tax of $262 for 2020.

[2] Amounts are net of tax of $158 and $182 for 2020 and 2019, respectively. All amounts are reclassified from accumulated other comprehensive loss to operating and administrative expense.

[3] Amounts are net of tax of $536 and $384 for 2020 and 2019, respectively.

[4] Amounts are net of tax of $444 and $133 for 2020 and 2019, respectively. All amounts are reclassified from accumulated other comprehensive loss to operating and administrative expense.