Note 4 - Inventories - Components of Inventories (Details) - USD ($)	Jan. 31, 2020	Oct. 31, 2019
Finished goods	$ 5,170,602	$ 5,845,973
Work in process	3,287,286	3,321,216
Raw materials	8,434,081	8,632,230
Production supplies	288,170	296,208
Total	$ 17,180,139	$ 18,095,627

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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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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