Note 16 - Income Taxes (Details Textual) - USD ($)	Jan. 31, 2023	Oct. 31, 2022	Jan. 31, 2022
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	$ 0
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	857,000		$ 833,000
Deferred Tax Assets, Valuation Allowance, Total	26,932,000		23,650,000
Tax Credit Carryforward, Amount	184,000
Unrecognized Tax Benefits, Ending Balance	$ 0	$ 0	$ 0