Note 8 - Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating lease expense	$ 959	$ 890	$ 616
Short-term lease expense	47	70	243
Variable lease expense	41	8	4
Other	38	29	11
Total lease expense	$ 1,085	$ 997	$ 874