Annual report pursuant to Section 13 and 15(d)

Note 1 - Summary of Significant Accounting Policies - Components of Inventory (Details)

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Note 1 - Summary of Significant Accounting Policies - Components of Inventory (Details) - USD ($)
Sep. 30, 2020
Sep. 30, 2019
Raw materials $ 12,287,134 $ 8,234,046
Work-in-process 1,033,021 540,962
Finished goods 2,048,514 1,356,720
Inventories, gross 15,368,669 10,131,728
Inventory reserve (960,131) (1,118,748)
Inventories, net $ 14,408,538 $ 9,012,980