Note 5 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating lease cost	$ 578	$ 589	$ 1,159	$ 1,120
Finance lease interest cost	17	21	36	43
Finance lease amortization expense	183	163	365	326
Total lease cost	$ 778	$ 773	1,560	1,489
Cash paid for amounts included in the measurement of lease liabilities			862	821
Right-of-use assets obtained in exchange for lease obligations			$ 0	$ 858
Operating leases (Year)	9 years 2 months 12 days		9 years 2 months 12 days
Finance leases (Year)	2 years 7 months 6 days		2 years 7 months 6 days
Operating leases	7.70%		7.70%
Finance leases	5.20%		5.20%