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Income Taxes (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jan. 31, 2024 | Jan. 31, 2023 | Jan. 31, 2024 | Jan. 31, 2023 | Apr. 30, 2023
Income Tax Disclosure [Abstract] |  |  |  |  |
Income tax expense | $ 982,000 | $ 962,000 | $ 3,894,000 | $ 1,911,000 |
Effective income tax rate | 27.90% | 46.70% | 33.10% | 87.80% |
Foreign tax expense |  |  | $ 387,000 |  |
Deferred tax liability, global tax exposure for unremitted earnings of international subsidiaries | $ 1,506,000 |  | $ 1,506,000 |  | $ 1,318,000

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- Definition Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-6 + Details
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