Income Taxes - Summary of Income Tax Expense/(Benefit) from Operations (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Current:
Federal	$ 5	$ (126)	$ 2,356
State	(79)	(123)	302
Foreign	4		3
Total current	(70)	(249)	2,661
Deferred:
Deferred federal			5,958
Deferred state			725
Total deferred			6,683
Total income tax (benefit)/expense	$ (70)	$ (249)	$ 9,344

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