Note 14 - Taxation (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Operating Loss Carryforwards	$ 32,400		$ 32,400		$ 31,000
Operating Loss Carryforwards, Taxable Income Deduction Limitations					80.00%
Deferred Tax Assets, Valuation Allowance	12,906		12,906		$ 12,271
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	360	$ 190	1,180	$ 2,150
PRC Subsidiary And VIE's [Member]
Operating Loss Carryforwards	$ 20,900		$ 20,900		$ 18,300