Asset Retirement Obligation - Schedule of Asset Retirement Obligation (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jan. 31, 2020 |
Jan. 31, 2019 |
Jan. 31, 2020 |
Jan. 31, 2019 |
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| Asset Retirement Obligation Disclosure [Abstract] | ||||
| Balance, beginning of nine-month period | $ 88,746 | $ 81,885 | ||
| Addition and changes in estimates | ||||
| Accretion expense | $ 2,335 | $ 2,133 | 6,666 | 4,854 |
| Balance, end of period | $ 95,412 | $ 86,739 | $ 95,412 | $ 86,739 |
| 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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- References No definition available.
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- 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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- 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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