Quarterly report pursuant to Section 13 or 15(d)

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

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Balance Sheet Information (Summary of Plant and Equipment) (Details) - USD ($)
 6 Months Ended
Mar. 31, 2023
Sep. 30, 2022
Property, Plant and Equipment [Line Items]    
Total plant and equipment $ 5,254,801 $ 4,827,650
Less: accumulated depreciation and amortization (3,735,012) (3,641,884)
Plant and equipment, net 1,519,789 1,185,766
Manufacturing Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Total plant and equipment $ 3,281,354 2,902,715
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 $ 1,488,987 1,440,475
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 $ 484,460 $ 484,460
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