INCOME TAXES (Details) (USD $)	3 Months Ended	12 Months Ended
	Oct. 24, 2009	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
Income Taxes [Abstract]
Non-cash tax charge for valuation allowance	$ 1,100,000
Reversals in interest benefit due to lapse of statutes of limitation				1,200,000
Unrecognized tax benefits		2,200,000	2,100,000
Interest and penalties accrued		600,000	500,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	2,897,000	2,054,000	1,977,000	2,897,000
Additions based on tax positions related to the fiscal year		154,000	226,000	231,000
Additions based on tax positions related to prior years		6,000	36,000	74,000
Reductions related to the expiration of statutes of limitation		(20,000)	(185,000)	(1,225,000)
Balance at end of year		2,194,000	2,054,000	1,977,000
Current: [Abstract]
Federal current		11,831,000	(3,116,000)	2,429,000
State current		3,478,000	765,000	531,000
Total current		15,309,000	(2,351,000)	2,960,000
Deferred: [Abstract]
Federal deferred		9,392,000	14,375,000	1,895,000
Foreign deferred		49,000	107,000	(40,000)
State deferred		433,000	246,000	66,000
Total deferred		9,874,000	14,728,000	1,921,000
Components of Deferred Tax Assets [Abstract]
Insurance and other reserves		22,014,000	23,396,000
Allowance for doubtful accounts and reserves		484,000	708,000
Net operating loss carryforwards		1,473,000	6,907,000
Other deferred tax assets		4,378,000	4,333,000
Gross deferred tax assets		28,349,000	35,344,000
Valuation allowance		(1,696,000)	(2,097,000)
Deferred tax assets, net of valuation allowance		26,653,000	33,247,000
Deferred Tax Liabilities [Abstract]
Property and equipment		35,832,000	35,935,000
Goodwill and intangibles		24,039,000	20,592,000
Other deferred tax liabilities		686,000	686,000
Deferred tax liabilities		60,557,000	57,213,000
Net deferred tax liabilities		(33,904,000)	(23,966,000)
Income Tax Reconciliation [Abstract]
Statutory rate applied to pre-tax income		22,600,000	9,970,000	3,756,000
State taxes, net of federal tax benefit		2,766,000	659,000	388,000
Non-deductible and non-taxable items		208,000	1,517,000	1,064,000
Change in accruals for uncertain tax positions		93,000	53,000	(823,000)
Valuation allowance of deferred tax asset		(313,000)	0	1,090,000
Other items, net		(171,000)	178,000	(594,000)
Total tax provision		25,183,000	12,377,000	4,881,000
Impaired Investment [Member]
Valuation Allowance [Line Items]
Valuation Allowance, Amount		800,000
Valuation allowance deferred tax asset change in amount		$ 300,000