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Recently Issued Accounting Standards	9 Months Ended
Recently Issued Accounting Standards	Jan. 31, 2014
Recently Issued Accounting Standards [Abstract]
Recently Issued Accounting Standards	Note 2: Recently Issued Accounting Standards In July 2012, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2012-02, Intangibles – Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment. ASU 2012-02 simplifies the guidance for testing impairment of indefinite-lived intangible assets by allowing the option to perform a qualitative test to assess the likelihood that the estimated fair value is less than the carrying amount. The adoption of ASU 2012-02 will not change the process for our February 1, 2014 annual impairment test and will not impact the financial statements or related disclosure.