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Note 6 - Segment Information - Sales by Geographic Area (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022
Net sales | $ 64,857 | $ 72,168 | $ 72,168
UNITED STATES |  |  |
Net sales | 58,843 | 65,781 |
CANADA |  |  |
Net sales | 3,825 | 2,183 |
ITALY |  |  |
Net sales | 248 | 1,802 |
CHINA |  |  |
Net sales | 531 | 310 |
UNITED KINGDOM |  |  |
Net sales | 523 | 393 |
All Other Foreign Countries [Member] |  |  |
Net sales | 887 | 1,699 |
Non-US [Member] |  |  |
Net sales | $ 6,014 | $ 6,387 |

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