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Note 9 - Income Taxes (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024	Oct. 31, 2024
Income Tax Expense (Benefit)	$ 88,000	$ (52,000)	$ 259,000	$ 2,766,000
Effective Income Tax Rate Reconciliation, Percent	18.30%	6.90%	160.90%	(76.90%)
Unrecognized Tax Benefits	$ 241,000		$ 241,000		$ 186,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	195,000		195,000
Deferred Tax Assets, Valuation Allowance	$ 4,146,000		$ 4,146,000		$ 3,962,000

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