Note 12 - Leases - Lease Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating cash outflow from operating leases	$ (488)	$ (445)
Weighted-average remaining lease term – operating leases (Year)	6 years 146 days	5 years 146 days
Weighted average discount rate – operating leases	6.50%	6.50%