Income Taxes - Income Taxes Paid (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2026	Apr. 30, 2025
Income Tax Examination [Line Items]
United States federal	$ 1,265	$ 1,849
United States state	457	556
Income taxes	3,560	3,972
Foreign - India
Income Tax Examination [Line Items]
Foreign	1,754	1,506
Foreign - Other jurisdictions
Income Tax Examination [Line Items]
Foreign	$ 84	$ 61

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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