Note 10 - Leases - Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating leases	$ 600	$ 503	$ 527
Asset amortization	25	310	462
Interest on lease liabilities	2	6	19
Variable lease cost	37	101	95
Short-term lease cost	8	25	87
Sublease income	(123)	(125)	(123)
Total net lease cost	$ 549	$ 820	$ 1,067