Organization and Summary of Significant Accounting Policies - Impairment of Long-Lived Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of right-of-use assets	$ 2,452	$ 1,629	$ 5,471
Impairment of fixed assets	509	1,575	4,375
Right-Of-Use Assets
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of right-of-use assets	2,500	1,600	5,500
Leasehold Improvements and Furniture and Fixtures
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of fixed assets	200	100	$ 4,400
Software and Software Development Costs
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of fixed assets	$ 400	$ 1,500