Organization and Summary of Significant Accounting Policies - Impairment of Long-Lived Assets (Details) - USD ($)	3 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
Impaired Long-Lived Assets Held and Used [Line Items]
Lease impairment cost	$ 0	$ 1,629,000
Impairment of fixed assets	$ 0	123,000
Right-Of-Use Assets
Impaired Long-Lived Assets Held and Used [Line Items]
Lease impairment cost		1,600,000
Leasehold Improvements And Furniture And Fixtures
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of fixed assets		$ 100,000