Note 9 - Leases - Summary of Information Relating to Lease Term and Discount Rate (Details)	Dec. 31, 2022	Dec. 31, 2021
Operating leases (Month)	18 months 24 days	27 months 9 days
Finance leases (Month)	17 months 6 days	29 months 6 days
Operating leases	7.50%	7.50%
Finance leases	7.50%	7.50%