Note 9 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2024	Apr. 30, 2023
Current Income Tax Expense (Benefit)	$ 4,690	$ 1,714
Current Federal Tax Expense (Benefit)	3,438	1,238
Current State and Local Tax Expense (Benefit)	1,252	$ 476
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	$ 0

Amount of current federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current national tax expense (benefit) for non-US (United States of America) jurisdiction.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

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Amount of current state and local tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, current regional, territorial, and provincial tax expense (benefit) for non-US (United States of America) jurisdiction.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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