Note 9 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Lease Cost:
Amortization of right of use assets	$ 15	$ 4
Interest expense on finance leases	1	1
Operating lease cost	652	300
Variable lease cost	70	60
Short-term lease cost	17	7
Total lease cost	755	372
Operating cash flows from operating leases	540	305
Financing cash flows from finance leases	$ 16	$ 4
Finance (Year)	4 years 3 months 14 days	6 years 29 days
Operating (Year)	3 years 7 months 13 days	1 year 10 months 13 days
Finance	2.10%	2.26%
Operating	2.53%	4.36%