Supplemental Balance Sheet Disclosures - Inventories and Prepaid expenses and other current assets (Details) - USD ($)	Dec. 31, 2020	Sep. 30, 2020
Inventory Valuation
Raw materials	$ 3,248,163	$ 3,378,246
Work-in-process	663,900	656,382
Finished goods	268,680	256,707
Inventories	4,180,743	4,291,335
Prepaid expenses and other current assets
Prepaid insurance	576,804	336,331
Other	274,057	338,778
Total prepaid expenses and other current assets	$ 850,861	$ 675,109

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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