Note 15 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Amortization of right-of-use assets	$ 21	$ 88
Interest on lease liabilities	1	3
Operating lease cost	2,369	1,926
Variable lease cost*	397	611
Total lease cost	$ 2,788	$ 2,628