Note 5 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating lease cost	$ 576	$ 572	$ 1,735	$ 1,731
Cash paid for amounts included in the measurement of lease liabilities			$ 1,381	1,279
Operating leases (Year)	8 years 8 months 12 days		8 years 8 months 12 days
Finance lease interest cost	$ 9	14	$ 32	50
Finance leases (Year)	2 years		2 years
Finance lease amortization expense	$ 182	182	$ 546	547
Operating leases	7.80%		7.80%
Finance leases	5.30%		5.30%
Total lease cost	$ 767	$ 768	$ 2,313	$ 2,328