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8. RELATED PARTY TRANSACTIONS (Details Narrative) - USD ($) | 12 Months Ended
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Apr. 30, 2020 | Apr. 30, 2019
SG Austria [Member] |  |
Equity interest owned | 14.50% |
SG Austria [Member] |  |
Purchases from related parties | $ 153,000 | $ 168,000
Vin-de-Bona [Member] |  |
Consulting fees | 24,000 | $ 18,000
Share base compensation expense | $ 10,000 |
Vin-de-Bona [Member] | Dr. Salmons [Member] |  |
Stock issued for services, shares | 250,000 |

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