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Basis of Presentation (Policies)	6 Months Ended
	Oct. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
New Accounting Pronouncements	In addition, on November 20, 2015, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2015-17, "Balance Sheet Classification of Deferred Taxes". The ASU simplifies the current guidance, which requires entities to separately present deferred tax assets and liabilities as current and noncurrent in a classified balance sheet. Upon adoption, the Company will net its current deferred tax asset with its noncurrent deferred tax liability as noncurrent on the balance sheet. The ASU will be effective for annual periods beginning after December 15, 2016, and interim periods within those years (with early adoption allowed). The Company plans to adopt the standard in the fourth quarter of its fiscal year ended April 30, 2016.

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Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.

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