Note 2 - Leases - Information Related to Lease Terms and Discount Rates (Details)	Dec. 31, 2022	Dec. 31, 2021
Operating leases (Year)	4 years 4 months 24 days	5 years 3 months 18 days
Finance leases (Year)	3 years	4 years
Operating leases	8.00%	8.00%
Finance leases	8.50%	8.50%