Asset Retirement Obligation - Schedule of Asset Retirement Obligation (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Apr. 30, 2019 |
Apr. 30, 2018 |
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| Asset Retirement Obligation Disclosure [Abstract] | ||
| Balance, beginning of year | ||
| Addition and changes in estimates | 81,885 | |
| Accretion expense | 6,861 | |
| Balance, end of year | $ 88,746 | |
| X | ||||||||||
- Definition Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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