Presentation and Summary of Significant Accounting Policies - Acquisition-Related Intangible Assets (Details) - Acquired Finite Lived Intangible Assets - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Acquisition-related intangible assets	$ 9,130	$ 8,140
Accumulated amortization	(6,987)	(7,993)
Total amortization expense	$ 2,143	147
Current technology
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization in Years	3 years
Acquisition-related intangible assets	$ 8,500	6,000
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization in Years	7 years
Acquisition-related intangible assets	$ 460	1,700
Non-compete
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization in Years	5 years
Acquisition-related intangible assets	$ 170	100
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization in Years	3 years
Acquisition-related intangible assets	$ 0	$ 340