Note 5 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating lease cost	$ 592	$ 578	$ 1,159	$ 1,159
Finance lease interest cost	$ 11	17	23	36
Cash paid for amounts included in the measurement of lease liabilities			$ 934	862
Operating leases (Year)	8 years 9 months 18 days		8 years 9 months 18 days
Finance leases (Year)	2 years 2 months 12 days		2 years 2 months 12 days
Finance lease amortization expense	$ 182	183	$ 364	365
Total lease cost	$ 785	$ 778	$ 1,546	$ 1,560
Operating leases	7.80%		7.80%
Finance leases	5.20%		5.20%