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New Accounting Standards Not Yet Adopted	3 Months Ended
New Accounting Standards Not Yet Adopted	Jan. 31, 2012
New Accounting Standards Not Yet Adopted [Abstract]
New Accounting Standards Not Yet Adopted	(12) New Accounting Standards Not Yet Adopted In May 2011, the FASB issued Accounting Standards Update 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs ("ASU 2011-04"). The amendments are intended to improve the comparability of fair value measurements presented and disclosed in financial statements prepared in accordance with U.S. GAAP and International Financial Reporting Standards. ASU 2011-04 is to be applied prospectively upon adoption and is effective for interim and annual periods beginning after December 15, 2011. The adoption of ASU 2011-04 is not expected to have any impact on the Company's results of operations, financial position or liquidity or its related financial statement disclosures. There are no other new accounting standards issued, but not yet adopted by the Company, which are expected to materially impact the Company's financial position, operating results or financial statement disclosures.