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Note 8 - Segment Information - Sales by Geographic Area (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Jan. 31, 2024 | Jan. 31, 2023
Net sales | $ 13,458 | $ 18,343
UNITED STATES |  |
Net sales | 12,060 | 16,104
CANADA |  |
Net sales | 882 | 584
ITALY |  |
Net sales | 31 | 1,098
MEXICO |  |
Net sales | 3 | 1
All Other Foreign Countries [Member] |  |
Net sales | 482 | 556
Non-US [Member] |  |
Net sales | $ 1,398 | $ 2,239

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