Note 6 - Leases - Summary of Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating lease cost	$ 1,498	$ 2,379
Variable lease cost	204	340
Total operating lease cost	1,702	2,719
Cash paid for operating leases included in operating cash flows	$ (1,497)	$ (2,500)