Note 13 - Taxation - Reconciliation of the Income Tax (Expense) Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Pre-tax loss	$ (5,976)	$ (9,794)
U.S. federal rate	21.00%	21.00%
Income tax benefit computed at U.S. federal rate	$ 1,255	$ 2,057
Rate differential for foreign earnings	(55)	(4)
Tax effect on non-taxable change in fair value of warrant liabilities	39	389
Provision of valuation allowance on deferred tax assets	353	(833)
Expired tax attribute carryforwards	(1,583)	(1,528)
Tax effect on other (non-deductible expenses)/non-taxable income	(7)	(78)
Effective income tax benefit/(expense)	$ (2)	$ (3)