Divestitures - Schedule of Earnings from Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax expense of discontinued operations	$ 700	$ 227	$ 493
Earnings from discontinued operations, net of income taxes	1,679	327	1,131
Discontinued Operations, Disposed of by Sale | The Poven Method
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	4,932	15,407	21,032
Cost of revenue	3,959	12,466	16,454
Total operating expenses	718	2,387	2,954
Gain on disposal of discontinued operations	2,124	0	0
Earnings before income taxes	2,379	554	1,624
Income tax expense of discontinued operations	700	227	493
Earnings from discontinued operations, net of income taxes	$ 1,679	$ 327	$ 1,131