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Note 10 - Income Taxes (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020	Oct. 31, 2020
Income Tax Expense (Benefit), Total	$ 272,000	$ (137,000)	$ 727,000	$ (148,000)
Effective Income Tax Rate Reconciliation, Percent, Total	22.70%	(62.50%)	22.10%	38.20%
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	$ 126,000		$ 126,000		$ 107,000
Unrecognized Tax Benefits, Ending Balance	$ 32,000		$ 32,000

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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