Note 7 - LEASES - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
LEASES
Operating lease expense	$ 1,860	$ 1,828
Short-term lease and variable lease expense (1)	822	545
Total lease expense	$ 2,682	$ 2,373
Weighted average remaining lease term under operating ROU leases (in years) (Year)	5 years 8 months 12 days	6 years 4 months 24 days
Weighted average discount rate for operating lease liabilities	5.25%	5.24%