Note 12 - Revenue Recognition (Details Textual) - USD ($) |
Apr. 30, 2026 |
Oct. 31, 2025 |
|---|---|---|
| Contract with Customer, Liability | $ 164,696 | $ 68,386 |
| Contract with Customer, Refund Liability | $ 181,687 | $ 403,816 |
| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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