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Note 7 - Commitments (Details Textual) - USD ($)
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Jan. 03, 2014
Operating Lease, Expense $ 239,273 $ 120,000  
Landlord [Member]      
Lessee, Operating Lease, Term of Contract (Year) 10 years   10 years
Operating Lease, Expense $ 120,000 $ 120,000