Note 10 - Leases (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating Lease, Right-of-Use Asset	$ 500
Operating Lease, Cost	200	$ 700
Operating Lease, Liability, Total	$ 500
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Month)	20 months
Lessee, Operating Lease, Renewal Term (Year)	3 years
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Month)	59 months
Lessee, Operating Lease, Renewal Term (Year)	10 years
Other Assets [Member]
Operating Lease, Right-of-Use Asset	$ 500
Other Liabilities [Member]
Operating Lease, Liability, Total	$ 533