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Accounts Receivable, Unbilled Services and Deferred Revenue - Summary of Accounts Receivable and Unbilled Services (Details) - USD ($) $ in Thousands | Jul. 31, 2024 | Apr. 30, 2024 | Apr. 30, 2023
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Receivables [Abstract] |  |  |
Accounts receivable | $ 4,722 | $ 4,886 | $ 3,843
Unbilled services | 5,540 | 5,941 | 4,993
Total accounts receivable and unbilled services | 10,262 | 10,827 | 8,836
Less: Allowances for credit losses and bad debt | (1,230) | (1,301) | (825)
Total accounts receivable, net | $ 9,032 | $ 9,526 | $ 8,011

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