Goodwill And Other Intangible Assets (Schedule Of Adjusted Assets And Liabilities Acquired) (Details) (USD $) In Thousands, unless otherwise specified	Jul. 28, 2011
Business Acquisition [Line Items]
Trade receivables	$ 334
Computer equipment	31
Total assets	6,965
Accounts payable	(130)
Other current liabilities	(197)
Debt assumed	(1,103)
Noncurrent liabilities	(1,217)
Net assets acquired	4,318
Goodwill	7,132
Total purchase price, net of cash acquired	11,450
Acquired Software And Trademarks [Member]
Business Acquisition [Line Items]
Other intangible assets	5,150
Non-Compete Agreement [Member]
Business Acquisition [Line Items]
Other intangible assets	543
Customer Relationships [Member]
Business Acquisition [Line Items]
Other intangible assets	$ 907