Significant Accounting Policies (Tables)  | 
3 Months Ended | |||||||||||||||||||||
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Jul. 31, 2018  | ||||||||||||||||||||||
| Accounting Policies [Abstract] | ||||||||||||||||||||||
| Schedule of Property and Equipment Useful Lives | 
 Property and equipment are recorded at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets per the following table. 
 
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| X | ||||||||||
- Definition Tabular disclosure of useful life of physical assets used in the normal conduct of business and not intended for resale. No definition available. 
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| X | ||||||||||
- References No definition available. 
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