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Other Income - Summary Of Other Income (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2023 | Apr. 30, 2022 | Apr. 30, 2021
Disclosure Of Detailed Information Of Other Income [Line Items] |  |  |  |  |
Bank and other interest income | $ 15,945 | $ 743 |  | $ 18 |
Government grant | 56 | 117 |  | 152 |
Others | 51 | 7 |  | 1 |
Total | $ 16,052 | $ 867 | [1] | $ 171 | [1]
[1] | The comparative consolidated financial statements have been re-presented from Hong Kong dollar to US$ to reflect the Company’s change in presentation currency. See note 1.

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