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, 2021
Sep. 30, 2020
Raw materials $ 23,071,833 $ 12,287,134
Work-in-process 2,481,890 1,033,021
Finished goods 3,361,576 2,048,514
Inventories, gross 28,915,299 15,368,669
Inventory reserve (1,390,988) (960,131)
Inventories, net $ 27,524,311 $ 14,408,538