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Related Party Transactions (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2023 | Oct. 31, 2022
Related Party |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Due to related parties | $ 0 |  | $ 0 |
Board Member | Board Member One |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Related party transaction, amounts of transaction | $ 9 | $ 9 | $ 18 | $ 18

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