Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Property and Equipment (Details Narrative)

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Summary of Significant Accounting Policies - Property and Equipment (Details Narrative) (USD $)
12 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Apr. 30, 2011
Summary Of Significant Accounting Policies - Liquidity And Basis Of Presentation Details Narrative      
Depreciation and amortization expense related to property and equipment $ 279,000 $ 496,999 $ 632,000