Note 6 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating lease cost	$ 2,291	$ 1,643
Finance lease interest cost	79	102
Finance lease amortization expense	502	637
Total lease cost	2,872	2,382
Cash paid for amounts included in the measurement of lease liabilities	1,649	1,058
Property Acquired under Operating Lease	$ 1,188	$ 4,999
Operating leases (Year)	9 years 4 months 24 days
Finance leases (Year)	3 years 21 days
Operating leases	7.70%
Finance leases	5.17%