Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Information (Summary of Property and Equipment) (Details)

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Balance Sheet Information (Summary of Property and Equipment) (Details) - USD ($)
 9 Months Ended
Jun. 30, 2020
Sep. 30, 2019
Property, Plant and Equipment [Line Items]    
Total plant and equipment $ 3,884,205 $ 3,810,761
Less: accumulated depreciation and amortization (3,568,749) (3,458,866)
Plant and equipment, net 315,456 351,895
Manufacturing Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Total plant and equipment $ 2,766,179 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 $ 819,140 795,228
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