CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Jul. 28, 2018	Jul. 29, 2017
Statement of Comprehensive Income [Abstract]
Net income		$ 25,080	$ 22,921
Other comprehensive income (loss):
Amortization of pension actuarial loss, net of tax	[1]	409	794
Pension remeasurement, net of tax	[2]	(218)	4,568
Pension settlement loss, net of tax	[3]	624	571
Reclassification due to the adoption of ASU 2018-02		(1,594)	0
Total other comprehensive (loss) income		(779)	5,933
Comprehensive income		$ 24,301	$ 28,854

[1] Amounts are net of tax of $160 and $549 for 2018 and 2017, respectively. All amounts are reclassified from accumulated other comprehensive loss to operating and administrative expense.

[2] Amounts are net of tax of $86 and $3,106 for 2018 and 2017, respectively.

[3] Amounts are net of tax of $242 and $394 for 2018 and 2017, respectively. All amounts are reclassified from accumulated other comprehensive loss to operating and administrative expense.