Note 9 - Property and Equipment, Net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property and equipment, gross	$ 1,924	$ 1,838
Less: accumulated depreciation	(1,774)	(1,722)
Property and equipment, net	150	116
Vehicles [Member]
Property and equipment, gross	447	442
Office Equipment [Member]
Property and equipment, gross	869	834
Electronic Devices [Member]
Property and equipment, gross	569	562
Leasehold Improvements [Member]
Property and equipment, gross	$ 39	$ 0