Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Advertising (Details Narrative)

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Summary of Significant Accounting Policies - Advertising (Details Narrative) (USD $)
3 Months Ended 6 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2012
Oct. 31, 2011
Summary Of Significant Accounting Policies - Advertising Details Narrative        
Advertising expense $ 42,000 $ 43,000 $ 67,000 $ 141,000