Inventories - Inventories (Details) - USD ($)	Oct. 31, 2021	Oct. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 2,554,083	$ 2,155,664
Work in process	1,714,957	1,725,596
Finished goods	439,223	373,620
Inventories	$ 4,708,263	$ 4,254,880

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

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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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