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Income Taxes (Tables) | 12 Months Ended
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Apr. 30, 2025
Income Tax Disclosure [Abstract] |
Summary of Income Tax Expense/(Benefit) from Continuing Operations | Income tax expense/(benefit) from operations consists of the following (in thousands):
|  | For the Years Ended April 30,
|  | 2025 |  | 2024 |  | 2023
Current: |  |  |  |  |  |
Federal (a) |  | $ | 48 |  |  | $ | 5 |  |  | $ | (126) |
State (b) |  | 64 |  |  | (79) |  |  | (123) |
Foreign |  | 11 |  |  | 4 |  |  | — |
Total current |  | 123 |  |  | (70) |  |  | (249) |
Deferred: |  |  |  |  |  |
Deferred federal |  | — |  |  | — |  |  | — |
Deferred state |  | — |  |  | — |  |  | — |
Total deferred |  | — |  |  | — |  |  | — |
Total income tax expense/(benefit) |  | $ | 123 |  |  | $ | (70) |  |  | $ | (249) |
Summary of Reconciliation of Provision for Income Taxes from Continuing Operations | The following table presents a reconciliation of the provision for income taxes from operations at statutory rates to the provision (benefit) in the consolidated financial statements (in thousands):
|  | For the Years Ended April 30,
|  | 2025 |  | 2024 |  | 2023
Federal income taxes expected at the statutory rate (c) |  | $ | 10 |  |  | $ | (2,587) |  |  | $ | (2,577) |
State income taxes, less federal income tax benefit |  | 14 |  |  | (132) |  |  | (303) |
Stock compensation |  | 249 |  |  | 436 |  |  | 96 |
Research and development tax credit |  | (149) |  |  | (203) |  |  | (200) |
Change in deferred tax valuation allowance |  | (192) |  |  | 2,257 |  |  | 2,600 |
Other |  | 191 |  |  | 159 |  |  | 135 |
Total income tax expense/(benefit) |  | $ | 123 |  |  | $ | (70) |  |  | $ | (249) |
_____________________________________________________________________ (a)Federal current expense is net of $875,000 tax benefit of operating loss carryforwards. (b)State current expense is net of $95,000 tax benefit of operating loss carryforwards. (c)We had a federal statutory rate of 21% in fiscal 2025, 2024, and 2023.
Summary of Deferred Tax Assets (Liabilities) Related to Temporary Differences | Deferred tax assets (liabilities) related to temporary differences are the following (in thousands):
| April 30, 2025 |  | April 30, 2024
Non-current tax assets (liabilities): |  |
Inventories | $ | 1,321 |  |  | $ | 1,100 |
Accrued expenses, including compensation | 2,261 |  |  | 1,589 |
Workers' compensation | 13 |  |  | 10 |
Warranty reserve | 322 |  |  | 286 |
Stock-based compensation | 991 |  |  | 1,066 |
State bonus depreciation | 56 |  |  | 110 |
Property, plant, and equipment | (1,974) |  |  | (2,619) |
Intangible assets | 11,059 |  |  | 11,777 |
Right-of Use assets | (7,401) |  |  | (7,740) |
Right-of Use lease liabilities | 7,724 |  |  | 7,985 |
Capitalized R&D | 2,649 |  |  | 2,136 |
Other | (182) |  |  | (83) |
Loss and credit carryforwards | 2,267 |  |  | 3,681 |
Less valuation allowance | (19,106) |  |  | (19,298) |
Net deferred tax asset/(liability) — total | $ | — |  |  | $ | — |

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