Annual report pursuant to Section 13 and 15(d)

Income Taxes (Reconciliation of Effective Tax Expense) (Details)

v3.23.3
Income Taxes (Reconciliation of Effective Tax Expense) (Details) - USD ($)
12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Income Taxes [Abstract]    
Income tax benefit at U.S. federal statutory rates $ (19,447,837) $ (17,543,321)
State income tax benefit, net of federal benefits (1,505,818) (1,358,354)
Amount, Non-deductible expenses 330,281 76,913
U.S. research and development tax credit 178,378 (5,720,374)
Effect of foreign income tax rates 454,808 409,048
Amount, Effect of common stock options exercised 180,847 (1,580,756)
Amount, Effect of global intangible low taxed income 24,691 24,691
Change in valuation allowance 20,191,386 25,792,441
Other, net 122,852 136,109
Income tax expense $ 480,206 $ 236,397
Tax Rate, Income tax benefit at U.S. federal statutory rates 21.00% 21.00%
Tax Rate, State income tax expense (benefit), net of federal benefits 1.60% 1.60%
Tax Rate, Non-deductible expenses - other (0.30%) (0.10%)
Tax Rate, U.S. research and development tax credit (0.20%) 6.90%
Tax Rate, Effect of foreign income tax rates (0.50%) (0.50%)
Tax Rate, Effect of common stock options exercised (0.20%) 1.90%
Tax Rate, Effect of global intangible low-taxed income 0.00% 0.00%
Tax Rate, Change in valuation allowance (21.80%) (30.90%)
Tax Rate, Other net (0.10%) (0.20%)
Tax Rate, Income tax expense (benefit) (0.50%) (0.30%)