| Property and Equipment (Details) (USD $) | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
| Jan. 31, 2014 | Jan. 31, 2013 | Jan. 31, 2014 | Jan. 31, 2013 | |
| Property and Equipment [Abstract] | ||||
| Depreciation and amortization | $ 96,879 | $ 77,484 | $ 267,763 | $ 211,004 | 
| Software amortization expense | $ 87,610 | $ 68,676 | $ 242,259 | $ 186,466 | 
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- Definition For each income statement presented, the amount charged to expense for amortization of capitalized computer software costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
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