Note 2 - Summary of Significant Accounting Policies (Details Narrative) - USD ($) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Jan. 31, 2022 |
Jan. 31, 2022 |
Apr. 30, 2021 |
Jan. 31, 2021 |
Apr. 30, 2020 |
|
| Accounting Policies [Abstract] | |||||
| Cash | $ 7,111,527 | $ 7,111,527 | $ 277,347 | $ 471,652 | $ 236,668 |
| Accrued Investment Income Receivable | 393,543 | 393,543 | |||
| Contract with Customer, Liability, Current | 336,621 | 336,621 | $ 46,096 | ||
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | $ 567 | $ 2,158 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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