Note 6 - Inventories - Components of Inventory (Details) - USD ($)	Jun. 30, 2018	Sep. 30, 2017
Raw materials	$ 5,136,429	$ 5,991,863
Work-in-progress	773,652	724,248
Finished goods	3,777,971	1,737,456
Inventories, net	$ 9,688,052	$ 8,453,567

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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-SubTopic 10
-Section S99
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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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-Name Accounting Standards Codification
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-Section 45
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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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-Publisher FASB
-Name Accounting Standards Codification
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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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