Note 12 - Taxation (Details Textual) $ in Thousands, $ in Millions		3 Months Ended	12 Months Ended
	Apr. 01, 2018 HKD ($)	Apr. 01, 2018	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%	21.00%
Income Tax Withholding Rate Pursuant to EIT Law				10.00%
Operating Loss Carryforwards				$ 34,180	$ 32,700
Operating Loss Carryforwards, Taxable Income Deduction Limitations				80.00%
Deferred Tax Assets, Valuation Allowance			$ 13,136	$ 12,303
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount				$ 890	$ 350
Minimum [Member]
PRC Value Added Tax Surcharge Rate				12.00%
PRC [Member]
PRC Value Added Tax Rate for Modern Service Provided				6.00%
PRC Value Added Tax Rate for Modern Service Provided Small Scale Tax Payer				3.00%
Other PRC Operating Entities [Member] | PRC [Member]
Applicable Income Tax Rate	25.00%			25.00%
Business Opportunity Online [Member] | PRC [Member]
Applicable Income Tax Rate					25.00%	15.00%
PRC Subsidiary And VIE's [Member]
Operating Loss Carryforwards				$ 10,870	$ 10,600
HONG KONG
Applicable Income Tax Rate for First Profit Limit		8.25%
Taxable Profits for Applicable Income Tax Rate	$ 2
Applicable Income Tax Rate for Subsequent Profit	16.50%