Note 9 - Leases - Summary of Information Relating to Lease Term and Discount Rate (Details)	Sep. 30, 2022	Sep. 30, 2021
Operating leases (Month)	20 months 12 days	29 months 27 days
Finance leases (Month)	20 months 6 days	32 months 6 days
Operating leases	7.50%	7.50%
Finance leases	7.50%	7.50%