Inventories - Inventories (Details) - USD ($)	Jul. 31, 2020	Oct. 31, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 2,435,178	$ 2,035,612
Work in process	1,558,861	1,239,861
Finished goods	340,584	843,584
Inventories	$ 4,334,623	$ 4,119,057

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a)(1))
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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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-Publisher FASB
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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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-Name Accounting Standards Codification
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