Note 8 - Leases - Operating Lease Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating lease cost	$ 4,159	$ 2,513
Short-term lease cost	436	340
Variable lease cost	1,312	1,233
Sublease income	0	(36)
Total lease cost	$ 5,907	$ 4,050