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v3.26.1

Summary of Business and Significant Accounting Policies (Details) | 12 Months Ended
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Apr. 30, 2026 USD ($) segment | Apr. 30, 2025 USD ($) | Apr. 30, 2024 USD ($)
Subsidiary, Sale of Stock [Line Items] |  |  |
Restricted cash | $ 12,600,000 | $ 12,600,000 |
Allowance for doubtful accounts | 1,100,000 | 900,000 |
Unbilled receivables | 42,800,000 | 40,200,000 |
Long-lived assets, impairment |  | 0 | $ 0
Goodwill, impairment | 0 | 0 | 0
Capitalized software costs | 600,000 | 800,000 |
Amortized capitalized software costs | $ 200,000 | 400,000 | 1,300,000
Term of pilot phase, up to (in months) | 6 months |  |
Deferred costs, sales commissions, amortization period (in years) | 5 years |  |
Accrued liabilities, warranties | $ 0 | 0 | 0
Advertising expenses | 100,000 | 18,300,000 | 15,800,000
401(k) matching contributions | $ 0 | $ 0 | $ 0
Number of operating segments | segment | 1 |  |
Number of reportable segments | segment | 1 |  |
Minimum |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |
Property and equipment, useful life (in years) | 3 years |  |
Maximum |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |
Property and equipment, useful life (in years) | 5 years |  |

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