Note 5 - Leases - Leases Cost (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Operating lease costs	$ 716	$ 729
Other	538	367
Total lease costs	1,254	1,096
Operating cash flows for operating leases	864	932
ROU assets obtained in exchange for new operating lease liabilities	$ 4,545	$ 1,010
Weighted-average remaining lease term (in years) (Year)	5 years 3 months 18 days	2 years 1 month 6 days
Weighted-average discount rate	3.40%	2.10%