Property and Equipment (Summary of Property and Equipment) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Property, Plant and Equipment [Line Items]
Total plant and equipment	$ 3,855,224	$ 3,810,761
Less: accumulated depreciation and amortization	(3,542,533)	(3,458,866)
Plant and equipment, net	312,691	351,895
Manufacturing Equipment [Member]
Property, Plant and Equipment [Line Items]
Total plant and equipment	$ 2,752,854	2,716,647
Manufacturing Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years
Manufacturing Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	8 years
Office Equipment, Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total plant and equipment	$ 803,484	795,228
Office Equipment, Furniture And Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Office Equipment, Furniture And Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	10 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total plant and equipment	$ 298,886	$ 298,886
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life	8 years