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v3.23.2

Schedule of Accounts Receivable, Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands | Apr. 30, 2023 | Apr. 30, 2022 | Apr. 30, 2021
--- | --- | --- | ---
Account Receivable Contract Assets And Contract Liabilities |  |  |
Accounts receivable | $ 745 | $ 482 | $ 350
Contract assets | 152 | 386 | 190
Contract liabilities | $ 1,378 | $ 129 |

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