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Inventories and major vendors - Components of Inventories (Details) - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Inventories and major vendors
Raw materials and supplies	$ 3,576	$ 2,711
Work in process	791	603
Finished goods	3,878	3,799
Totals	$ 8,245	$ 7,113

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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