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Income Taxes (Narrative) (Details) (USD $)
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12 Months Ended | |
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Apr. 30, 2014
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Apr. 30, 2013
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| Income Taxes [Abstract] | ||
| Net change in the valuation allowance | $ 1,979,374 | $ 518,331 |
| Operating Loss Carryforwards [Line Items] | ||
| Net operating loss carryforwards | $ 16,248,831 | |
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Minimum [Member]
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| Operating Loss Carryforwards [Line Items] | ||
| Net operating loss carryforwards, expiration | Jan. 01, 2029 | |
| Years under examination | 2010 | |
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Maximum [Member]
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| Operating Loss Carryforwards [Line Items] | ||
| Net operating loss carryforwards, expiration | Dec. 31, 2034 | |
| Years under examination | 2013 | |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tax year being audited in the income tax examination, in CCYY format. No definition available.
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- Definition
Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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