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Presentation of Financial Statements	9 Months Ended
Presentation of Financial Statements	Jan. 31, 2013
Presentation Of Financial Statements [Abstract]
Presentation of Financial Statements	1. Presentation of Financial Statements The accompanying condensed consolidated financial statements include the accounts and transactions of the Company and its wholly-owned subsidiaries. All material inter-company balances and transactions have been eliminated in consolidation.

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

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