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Summary of Significant Accounting Policies - Intangible Assets - Estimated future amortization expense (Details) (USD $)
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Apr. 30, 2013
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| Estimated future amortization expense related to intangible assets | |
| Year ending April 30, 2014 | $ 133,000 |
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- Definition
Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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