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Note 9 - Segment Information - Sales by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Net sales	$ 21,505	$ 11,057	$ 38,423	$ 21,059
UNITED STATES
Net sales	19,950	10,338	36,366	19,717
CANADA
Net sales	663	566	961	1,091
MEXICO
Net sales	53	26	78	26
All Other Foreign Countries [Member]
Net sales	839	127	1,018	225
Non-US [Member]
Net sales	$ 1,555	$ 719	$ 2,057	$ 1,342

X

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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