Note 11 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Amortization of right-of-use assets	$ 60	$ 63
Interest on lease liabilities	5	6
Operating lease cost	192	184
Short-term lease cost	22	37
Variable lease cost	17	10
Total lease cost	296	300
Operating cash flows from finance leases	5	6
Operating cash flows from operating leases (Fixed payments)	176	148
Operating cash flows from operating leases (Liability reduction)	94	74
Financing cash flows from finance leases	59	59
Right-of-use assets obtained in exchange for new finance lease liabilities	0	0
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 0	$ 0
Weighted-average remaining lease term - finance leases (in years) (Year)	6 years 4 months 20 days	6 years 11 months 23 days
Weighted average remaining lease term - operating leases (in years) (Year)	20 years 5 months 23 days	21 years 3 months
Weighted-average discount rate - finance leases	1.70%	1.77%
Weighted-average discount rate - operating leases	3.39%	3.39%