Note 9 - Property and Equipment, Net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Property and equipment, gross	$ 1,878	$ 1,838
Less: accumulated depreciation	(1,735)	(1,722)
Property and equipment, net	143	116
Vehicles [Member]
Property and equipment, gross	443	442
Office Equipment [Member]
Property and equipment, gross	835	834
Electronic Devices [Member]
Property and equipment, gross	563	562
Leasehold Improvements [Member]
Property and equipment, gross	$ 37	$ 0