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Note 5 - Intangible Assets (Details Textual) - USD ($) | 12 Months Ended
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Oct. 31, 2025 | Oct. 31, 2024
Amortization of Intangible Assets | $ 54,399 | $ 54,062
Finite-Lived Intangible Asset, Expected Amortization, Year One | 53,000 |
Finite-Lived Intangible Asset, Expected Amortization, Year Two | 53,000 |
Finite-Lived Intangible Asset, Expected Amortization, Year Three | 53,000 |
Finite-Lived Intangible Asset, Expected Amortization, Year Four | 53,000 |
Finite-Lived Intangible Asset, Expected Amortization, Year Five | 53,000 |
Finite-Lived Intangible Assets, Gross | 883,708 | 879,963
Finite-Lived Intangible Assets, Accumulated Amortization | $ 422,387 | $ 367,989

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