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Note 12 - Income Taxes - Computation of Provision (benefits) Income Taxes from Statutory Federal Income Tax Rate (Details)
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Expected income tax (benefit) at federal statutory rate 21.00% 21.00%
Increase/(Decrease) due to:    
State income taxes – net of federal benefit 3.65% 5.80%
Permanent Differences:    
Key man life insurance 0.00% (0.01%)
Stock Based Compensation (18.10%)  
R&D, taken as a credit (0.23%) (0.29%)
Adjustment to fair value of derivative 3.98% 0.37%
PPP Loan Forgiveness   0.60%
Other (1.14%) (1.41%)
Change in Valuation Allowance (9.16%) (26.06%)
Total Income Tax Provision / (Benefit) 0.00% 0.00%