Income Taxes - Schedule of Deferred Tax Assets (Liabilities) Related to Temporary Differences (Details) - USD ($) $ in Thousands |
Apr. 30, 2026 |
Apr. 30, 2025 |
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Inventories | $ 1,380 | $ 1,321 |
| Accrued expenses, including compensation | 1,189 | 2,261 |
| Workers' compensation | 0 | 13 |
| Warranty reserve | 309 | 322 |
| Stock-based compensation | 956 | 991 |
| State bonus depreciation | 34 | 56 |
| Property, plant, and equipment | (1,438) | (1,974) |
| Intangible assets | 10,056 | 11,059 |
| Right-of Use assets | (7,145) | (7,401) |
| Right-of Use lease liabilities | 7,536 | 7,724 |
| Capitalized R&D | 1,875 | 2,649 |
| Assets held for sale | 802 | 0 |
| Other | (108) | (182) |
| Loss and credit carryforwards | 5,445 | 2,267 |
| Less valuation allowance | (20,891) | (19,106) |
| Net deferred tax asset/(liability) - total | $ 0 | $ 0 |
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- Definition Deferred tax assets capitalized research and development costs. No definition available.
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- Definition Deferred Tax Assets, Held For Sale No definition available.
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- Definition Deferred tax assets, intangible assets. No definition available.
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- Definition Deferred tax assets loss and credit carryforwards. No definition available.
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- Definition Deferred tax assets, right-of-use liabilities. No definition available.
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- Definition Deferred tax assets state bonus depreciation. No definition available.
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- Definition Deferred tax liabilities, right-of-use assets. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from warranty reserves. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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