Note 10 - Leases - Leases Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Operating lease right-of-use assets	$ 1,856	$ 969
Current portion of operating lease liabilities	877	363
Non-current portion of operating lease liabilities	978	606
Total operating lease liabilities	$ 1,856	$ 969
Weighted-average remaining lease term - operating leases (in years) (Year)	2 years 1 month 6 days	2 years 14 days
Weighted-average discount rate - operating leases	10.00%	6.40%
Approximation [Member]
Current portion of operating lease liabilities	$ 878	$ 363