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v3.23.2

Summary of Significant Accounting Policies - Narrative (Details) | 12 Months Ended |
--- | --- | ---
Apr. 30, 2023 USD ($) segment | Apr. 30, 2022 USD ($) | Apr. 30, 2021 USD ($)
Property, Plant and Equipment [Line Items] |  |  |
Cash | $ 10,118,000 | $ 9,007,000 |
Cash equivalents | 0 | 0 |
Net income | (5,335,000) | 548,000 |
Accumulated deficit | 77,317,000 | 71,982,000 |
Working capital | (2,300,000) |  |
Asset impairment | $ 807,000 | 0 |
Number of reportable segments | segment | 1 |  |
Impairment of goodwill | $ 0 | 0 |
Unrecognized tax benefits | 181,000 | 181,000 | $ 181,000
Income tax penalties and interest expense | 0 | 0 |
Provision for (benefit) from income tax | $ 68,000 | 35,000 |
Minimum |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 3 years |  |
Maximum |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 7 years |  |
Recurring Basis |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value | $ 0 | 0 |
Liabilities, fair value | 0 | 0 |
Nonrecurring Basis |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value | 0 | 0 |
Liabilities, fair value | $ 0 | $ 0 |

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