Note 9 - Property and Equipment, Net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Property and equipment, gross	$ 2,069	$ 2,119
Less: accumulated depreciation	(1,935)	(1,904)
Property and equipment, net	134	215
Vehicles [Member]
Property and equipment, gross	453	520
Office Equipment [Member]
Property and equipment, gross	855	846
Electronic Devices [Member]
Property and equipment, gross	577	571
Leasehold Improvements [Member]
Property and equipment, gross	$ 184	$ 182