Note 17 - Taxation - Taxes Payable (Details) - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
PRC turnover tax and surcharge payable		$ 1,215	$ 1,295
PRC enterprise income tax payable		1,782	1,873
Taxes payable	[1]	$ 2,997	$ 3,168

[1] All of the VIEs' assets can be used to settle obligations of their primary beneficiary. Liabilities recognized as a result of consolidating these VIEs do not represent additional claims on the Company's general assets (Note 2).