Presentation and Summary of Significant Accounting Policies - Additional Information (Details)		12 Months Ended
	Sep. 18, 2023 USD ($)	Apr. 30, 2024 USD ($) plan segment $ / shares	Apr. 30, 2023 USD ($)	Apr. 30, 2022 USD ($)
Accounting Policies [Line Items]
Number of reportable segments | segment		2
Number of major business segments | segment		2
Amounts received for reimbursement of travel and other out-of-pocket expenses		$ 154,000	$ 320,000	$ 47,000
Revenue recognized and included in deferred revenue		41,800,000
Remaining performance obligations		128,000,000
Deferred commissions		2,500,000	3,000,000
Amortization of sales commissions		1,600,000	1,700,000	2,100,000
Impairment loss		0	0	0
Unbilled license fees		100,000	300,000
Unbilled services revenue		300,000	2,600,000
Cash equivalents		53,500,000	81,400,000
Total amounts of expense/(recovery) to operations for doubtful accounts		0	0	0
Depreciation and amortization expense		1,500,000	1,200,000	700,000
Amortization of acquisition-related intangibles		$ 543,000	106,000	212,000
Number of stock compensation plans | plan		2
Stock-based compensation expense		$ 6,320,000	5,152,000	3,935,000
Income tax benefit (shortfall)		0	70,000	1,700,000
Advertising expense		2,500,000	2,700,000	2,900,000
Liability for warranty agreements		$ 0	$ 0
Discontinued Operations, Disposed of by Sale | The Poven Method
Accounting Policies [Line Items]
Equity ownership, percentage	100.00%
Proceeds from sale of equity method investments	$ 2,100,000
Class A Common Shares
Accounting Policies [Line Items]
Dividends preference (in usd per share) | $ / shares		$ 0.05
Class B Common Shares
Accounting Policies [Line Items]
Share conversion ratio		1	1
Employee Stock Option
Accounting Policies [Line Items]
Stock-based compensation expense		$ 5,300,000	$ 5,200,000	4,000,000
Restricted Stock Units (RSUs)
Accounting Policies [Line Items]
Stock-based compensation expense		1,000,000	0	0
Operating Expense
Accounting Policies [Line Items]
Amortization of acquisition-related intangibles		600,000	100,000
Subscription Fees
Accounting Policies [Line Items]
Amortization of acquisition-related intangibles		2,000,000	700,000
Capitalized Software
Accounting Policies [Line Items]
Finite-lived intangible asset, expected amortization, year one		11,000
Finite-Lived Intangible Assets
Accounting Policies [Line Items]
Amortization of acquisition-related intangibles		$ 2,600,000	$ 800,000	$ 200,000
Computers Equipment And Software
Accounting Policies [Line Items]
Estimated useful lives of assets		3 years
Office furniture and equipment
Accounting Policies [Line Items]
Estimated useful lives of assets		7 years
Buildings
Accounting Policies [Line Items]
Estimated useful lives of assets		30 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-05-01
Accounting Policies [Line Items]
Revenue recognition of remaining performance obligations		51.00%
Revenue recognition in next twelve months		12 months
Minimum
Accounting Policies [Line Items]
Contractual period of maintenance contract		1 year
Minimum | Other Intangible Assets
Accounting Policies [Line Items]
Intangible assets amortized period (in years)		1 year
Minimum | Buildings and leasehold improvements
Accounting Policies [Line Items]
Estimated useful lives of assets		7 years
Maximum
Accounting Policies [Line Items]
Contractual period of maintenance contract		3 years
Maximum | Other Intangible Assets
Accounting Policies [Line Items]
Intangible assets amortized period (in years)		8 years
Maximum | Buildings and leasehold improvements
Accounting Policies [Line Items]
Estimated useful lives of assets		15 years