Note 13 - Leases - Lease Cost (Details) - USD ($)	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash paid on operating leases	$ 37,900	$ 48,900
Right of use obtained in exchange for operating lease obligations		$ 325,688
Weighted-average remaining term (in years) (Year)	17 years 4 months 24 days	17 years 4 months 24 days
Weighted-average discount rate	5.65%	5.65%