Note 9 - Leases (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Buildings and Equipment [Member]
Operating Lease, Right-of-Use Asset	$ 179	$ 230
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Month)	8 months
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Month)	19 months