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Note 7 - Income Tax Provision (Benefit) (Details Textual) - USD ($) | 12 Months Ended
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Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022
Deferred Tax Assets, Valuation Allowance | $ 3,962,000 | $ 124,000 |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | 3,800,000 | 100,000 |
Income Tax Expense (Benefit), Total | $ 2,796,000 | $ (1,172,000) | $ (1,172,000)
Effective Income Tax Rate Reconciliation, Percent, Total | 73.50% | (27.50%) |
Income Tax Expense (Benefit), Total | $ (2,796,000) | $ 1,172,000 | 1,172,000
Effective Income Tax Rate Reconciliation, Percent, Total | (73.50%) | 27.50% |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00% |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total | $ 186,000 | $ 178,000 | $ 121,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 81,000 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 28,000 | $ 20,000 |
General Business Tax Credit Carryforward [Member] |  |  |
Tax Credit Carryforward, Amount | 1,500,000 |  |
Domestic Tax Jurisdiction [Member] |  |  |
Deferred Tax Assets, Valuation Allowance | 3,800,000 |  |
Domestic Tax Jurisdiction [Member] | Research Tax Credit Carryforward [Member] |  |  |
Tax Credit Carryforward, Amount | 100,000 |  |
State and Local Jurisdiction [Member] |  |  |
Operating Loss Carryforwards | 600,000 |  |
State and Local Jurisdiction [Member] | Research Tax Credit Carryforward [Member] |  |  |
Tax Credit Carryforward, Amount | 300,000 |  |
State and Local Jurisdiction [Member] | Research Tax Credit Carryforward [Member] | Expiring [Member] |  |  |
Tax Credit Carryforward, Amount | $ 200,000 |  |

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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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