Note 12 - Taxation (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Operating Loss Carryforwards	$ 32,300		$ 32,300		$ 31,800
Operating Loss Carryforwards, Taxable Income Deduction Limitations	80.00%		80.00%
Deferred Tax Assets, Valuation Allowance	$ 13,454		$ 13,454		12,691
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	350	$ 360	910	$ 1,180
PRC Subsidiary And VIE's [Member]
Operating Loss Carryforwards	$ 16,900		$ 16,900		$ 15,400