CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME (USD $) In Thousands, except Share data	Class A Common Stock	Class B Common Stock	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock	Total
Balance at Jul. 25, 2009	$ 28,982	$ 1,035	$ 171,229	$ (10,535)	$ (3,313)	$ 187,398
Balance - Shares at Jul. 25, 2009	7,538	6,376			555
Net income			25,381			25,381
Recognition of pension actuarial loss, net of tax				744		744
Increase in pension liability, net of tax				(630)		(630)
Comprehensive income						25,495
Dividends			(10,820)			(10,820)
Exercise of stock options		236			250	486
Exercise of stock options - shares					(42)
Share-based compensation expense	2,929					2,929
Share-based compensation expense - shares	3
Excess tax benefit related to share-based compensation	287					287
Balance at Jul. 31, 2010	32,434	1,035	185,790	(10,421)	(3,063)	205,775
Balance - Shares at Jul. 31, 2010	7,541	6,376			513
Net income			20,982			20,982
Recognition of pension actuarial loss, net of tax				991		991
Increase in pension liability, net of tax				(1,712)		(1,712)
Comprehensive income						20,261
Dividends			(19,086)			(19,086)
Exercise of stock options	300				427	727
Exercise of stock options - shares					(59)
Treasury stock purchases					(2,171)	(2,171)
Treasury stock purchases - shares					76,000
Share-based compensation expense	3,007					3,007
Share-based compensation expense - shares	292
Net tax deficit from exercise of stock options and restricted share vesting	(356)					(356)
Balance at Jul. 30, 2011	35,385	1,035	187,686	(11,142)	(4,807)	208,157
Balance - Shares at Jul. 30, 2011	7,833	6,376			530
Net income			31,445			31,445
Recognition of pension actuarial loss, net of tax				780		780
Increase in pension liability, net of tax				(5,112)		(5,112)
Comprehensive income						27,113
Dividends			(9,758)			(9,758)
Exercise of stock options	723				630	1,353
Exercise of stock options - shares					(69)
Treasury stock purchases					(9)	(9)
Share-based compensation expense	3,180					3,180
Share-based compensation expense - shares	9
Excess tax benefit related to share-based compensation	275					275
Conversion of Class B shares to Class A shares	7	(7)
Conversion of Class B shares to Class A shares - shares	41	(41)
Balance at Jul. 28, 2012	$ 39,570	$ 1,028	$ 209,373	$ (15,474)	$ (4,186)	$ 230,311
Balance - Shares at Jul. 28, 2012	7,883	6,335			461