Note 5 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating lease cost	$ 572	$ 576	$ 1,731	$ 1,696
Cash paid for amounts included in the measurement of lease liabilities			$ 1,279	861
Operating leases (Year)	9 years 1 month 6 days		9 years 1 month 6 days
Finance leases (Year)	2 years 9 months 18 days		2 years 9 months 18 days
Finance lease interest cost	$ 14	18	$ 50	61
Property Acquired Under Operating Lease			$ 0	858
Operating leases	7.70%		7.70%
Finance leases	5.20%		5.20%
Finance lease amortization expense	$ 182	163	$ 547	489
Total lease cost	$ 768	$ 757	$ 2,328	$ 2,246