Note 6 - Inventories - Components of Inventory (Details) - USD ($)	Dec. 31, 2019	Sep. 30, 2019
Raw materials	$ 8,384,548	$ 7,115,298
Work-in-progress	778,957	540,962
Finished goods	1,466,936	1,356,720
Inventories, net	$ 10,630,441	$ 9,012,980

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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