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New Accounting Pronouncements	3 Months Ended
New Accounting Pronouncements	Jul. 31, 2011
New Accounting Pronouncements
New Accounting Pronouncements	NOTE B--NEW 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," which requires an entity to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income, or in two separate but consecutive statements. Additionally, ASU 2011-05 eliminates the option to present comprehensive income and its components as part of the statement of shareholders' equity. The ASU does not change the items that must be reported in other comprehensive income. ASU 2011-05 will be effective for the Company beginning May 1, 2012.