Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Balance Sheet Information - Schedule of Plant and Equipment (Details)

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Note 6 - Balance Sheet Information - Schedule of Plant and Equipment (Details) - USD ($)
Jun. 30, 2024
Sep. 30, 2023
Plant and equipment:    
Plant and equipment $ 5,445,010 $ 5,440,686
Less: accumulated depreciation and amortization (3,953,881) (3,787,954)
Plant and equipment, net 1,491,129 1,652,732
Equipment [Member]    
Plant and equipment:    
Plant and equipment $ 3,005,977 3,008,122
Equipment [Member] | Minimum [Member]    
Plant and equipment:    
Plant and equipment, useful life (Year) 5 years  
Equipment [Member] | Maximum [Member]    
Plant and equipment:    
Plant and equipment, useful life (Year) 8 years  
Office Equipment, Furniture and Fixtures [Member]    
Plant and equipment:    
Plant and equipment $ 1,478,339 1,471,870
Office Equipment, Furniture and Fixtures [Member] | Minimum [Member]    
Plant and equipment:    
Plant and equipment, useful life (Year) 3 years  
Office Equipment, Furniture and Fixtures [Member] | Maximum [Member]    
Plant and equipment:    
Plant and equipment, useful life (Year) 10 years  
Leasehold Improvements [Member]    
Plant and equipment:    
Plant and equipment $ 960,694 $ 960,694
Leasehold Improvements [Member] | Minimum [Member]    
Plant and equipment:    
Plant and equipment, useful life (Year) 3 years  
Leasehold Improvements [Member] | Maximum [Member]    
Plant and equipment:    
Plant and equipment, useful life (Year) 8 years