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Discontinued Operations - results of operations (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 31, 2024 | Jan. 31, 2023 | Jan. 31, 2024 | Jan. 31, 2023
Discontinued Operations and Disposal Groups [Abstract] |  |  |  |
Revenues | $ 1,100,943 | $ 1,438,961 | $ 4,027,094 | $ 4,164,531
Cost of goods sold | 1,745,771 | 1,239,420 | 4,285,087 | 3,579,679
Gross Margin | (644,828) | 199,541 | (257,993) | 584,852
Operating Expenses |  |  |  |
Operations | 288,059 | 151,502 | 671,864 | 484,340
Research and development | 36,379 | 80,270 | 113,682 | 251,034
Sales and marketing | 286,918 | 192,625 | 978,435 | 555,916
General and administrative | 43,024 | 116,837 | 96,612 | 276,321
Total operating expenses | 654,380 | 541,234 | 1,860,593 | 1,567,611
Operating loss | (1,299,208) | (341,693) | (2,118,586) | (982,759)
Other (income) expense |  |  |  |
Interest expense |  |  | 22,856 |
Other, net | (3) | (11,614) | (153) | (19,788)
Net loss from discontinued operations | $ (1,299,205) | $ (330,079) | $ (2,141,289) | $ (962,971)

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