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Consolidated Statements of Equity (Parentheticals) - shares	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Statement [Line Items]
Purchase of treasury shares (in shares)	57,856	304,204	106,590

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares that have been repurchased during the period and are being held in treasury.

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