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Recent Accounting Pronouncements	3 Months Ended
Recent Accounting Pronouncements	Oct. 29, 2011
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	In June 2011, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2011-05 Comprehensive Income (Topic 220): Presentation of Comprehensive Income (“ASU 2011-05”). ASU 2011-05 increases the prominence of other comprehensive income in financial statements. Under ASU 2011-05, companies will have the option to present the components of net income and comprehensive income in either one or two consecutive financial statements. ASU 2011-05 eliminates the option to present other comprehensive income in the statement of changes in equity and is applied retrospectively. ASU 2011-05 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The Company does not expect the adoption of ASU 2011-05 to have a significant impact on its consolidated financial statements.