Note 17 - Related Party Transaction (Details Textual) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended | 24 Months Ended | |
|---|---|---|---|---|
Apr. 30, 2021 |
Apr. 30, 2020 |
Oct. 31, 2020 |
Oct. 31, 2017 |
|
| Income Taxes Paid, Net, Total | $ 953 | $ 212 | $ 4,300 | |
| Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 34.00% | |||
| Effective Income Tax Rate Reconciliation, Net Operating Loss Carryforwards, Amount | $ 4,300 | |||
| General and Administrative Expense [Member] | ||||
| Settlement of Tax Refunds from Net Operating Loss Carryforwards | $ 2,000 | |||
| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to net operating loss carryforwards. No definition available.
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| X | ||||||||||
- Definition Expenses incurred to the settlement of tax refunds provided by carrying back net operating loss carryforwards. No definition available.
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| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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