CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Jul. 29, 2017	Jul. 30, 2016	Jul. 25, 2015
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income		$ 22,921	$ 25,044	$ 30,620
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Curtailment Gain, Net of Tax		0	10,616	0
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Net of Tax		571	0	(189)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), Net of Tax		(794)	(892)	(768)	[1]
Pension adjustment to funded status, net of tax	[2]	4,568	(7,973)	(4,988)
Total other comprehensive income (loss)		5,933	3,535	(4,409)
Comprehensive income		$ 28,854	$ 28,579	$ 26,211

[1] Amounts are net of tax of $549, $612 and $527 for 2017, 2016 and 2015, respectively.

[2] Amounts are net of tax of $3,106, $5,478 and $3,429 for 2017, 2016 and 2015, respectively.