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Segment Information - Revenues by Geographic Locations (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Segment Reporting Information [Line Items]
Total revenues	$ 130,484	$ 69,585	$ 70,871
United States
Segment Reporting Information [Line Items]
Total revenues	60,290	58,393	67,750
South Korea
Segment Reporting Information [Line Items]
Total revenues	68,341	8,161	2,059
England
Segment Reporting Information [Line Items]
Total revenues	740	143	25
Germany
Segment Reporting Information [Line Items]
Total revenues	$ 1,113	2,658	414
Switzerland
Segment Reporting Information [Line Items]
Total revenues		$ 230	$ 623

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Amount, excluding 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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