v3.26.3
Note 9 - Income Taxes (Details Textual) - USD ($)
 3 Months Ended 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
Oct. 31, 2025
Income Tax Expense (Benefit) $ 84,000 $ 88,000 $ 178,000 $ 259,000  
Effective Income Tax Rate Reconciliation, Percent 5.50% 18.30% 7.30% 160.90%  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%   21.00%    
Unrecognized Tax Benefits $ 295,000   $ 295,000   $ 217,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 192,000   192,000    
Deferred Tax Assets, Valuation Allowance $ 4,200,000   $ 4,200,000   $ 4,716,000