Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Apr. 30, 2022 |
Apr. 30, 2021 |
Apr. 30, 2022 |
Apr. 30, 2021 |
Oct. 31, 2021 |
|
| Income Tax Expense (Benefit) Rounded | $ 500 | $ 500 | |||
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total | 6,512 | $ (10,683) | 7,674 | $ (25,621) | |
| Income Tax Expense (Benefit), Total | 527 | $ 170 | 506 | $ (2,478) | |
| Deferred Tax Assets, Net, Total | 70,000 | 70,000 | $ 70,600 | ||
| Deferred Tax Assets, Operating Loss Carryforwards, Total | 17,800 | 17,800 | 17,800 | ||
| Tax Credit Carryforward, Valuation Allowance | $ 100 | $ 100 | 100 | ||
| Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount | $ 100 | ||||
| X | ||||||||||
- Definition Represents rounded income tax expense (benefit) rounded. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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