Note 9 - Leases - Summary of Information Relating to Lease Term and Discount Rate (Details)	Jun. 30, 2023	Jun. 30, 2022
Operating leases (Month)	13 months 15 days	22 months 15 days
Finance leases (Month)	11 months 6 days	23 months 6 days
Operating leases	7.50%	7.50%
Finance leases	7.50%	7.50%