Acquisition and Disposition - Schedule of Discontinued Operation (Details) (Parenthetical) |
12 Months Ended |
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Apr. 30, 2018
USD ($)
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| Business Combinations [Abstract] | |
| Impairment charge | $ 6,094,760 |
| X | ||||||||||
- Definition Disposal group including discontinued operation operating impairment charge. No definition available.
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| X | ||||||||||
- References No definition available.
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