Note 5 - Product Warranties (Details Textual) - USD ($) |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2026 |
Apr. 30, 2025 |
Oct. 31, 2025 |
Oct. 31, 2024 |
|
| Standard and Extended Product Warranty Accrual | $ 80,000 | $ 65,000 | $ 80,000 | $ 65,000 | $ 100,000 | $ 65,000 |
| Product Warranty Expense | $ 12,630 | $ 22,314 | $ 36,612 | $ 31,941 | ||
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The expense charged against earnings for the period pertaining to standard and extended warranties on the entity's goods and services granted to customers. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|