Note 2 - Variable Interest Entities - Consolidated VIEs' Assets and Liabilities (Details) - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Cash and cash equivalents		$ 510	$ 817
Accounts receivable, net		1,178	844
Prepayment and deposit to suppliers		5,323	4,505
Other current assets, net		2,362	2,794
Total current assets		9,373	8,960
Goodwill, net		78	0
Intangible assets, net		435	841
Property and equipment, net		158	215
Deferred tax assets, net		402	401
Total Assets		10,843	11,233	$ 16,246	$ 19,658
Accounts payable	[1]	338	201
Advances from customers	[1]	976	843
Accrued payroll and other accruals	[1]	167	350
Taxes payable	[1]	3,178	3,194
Lease payment liabilities related to short-term leases	[1]	99	99
Other current liabilities	[1]	666	144
Total current liabilities		5,424	4,855
Deferred tax liabilities	[1]	3	0
Total Liabilities		5,550	4,979
Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents		138	367
Prepayment and deposit to suppliers		2,434	2,005
Other current assets, net		6	2
Total current assets		3,006	3,218
Goodwill, net		78	0
Intangible assets, net		14	0
Property and equipment, net		110	139
Deferred tax assets, net		402	401
Total Assets		3,610	3,758
Accounts payable		338	201
Advances from customers		976	843
Accrued payroll and other accruals		44	37
Taxes payable		2,542	2,555
Lease payment liabilities related to short-term leases		99	99
Other current liabilities		720	56
Total current liabilities		4,719	3,791
Deferred tax liabilities		3	0
Total Liabilities		4,722	3,791
Variable Interest Entity, Primary Beneficiary [Member] | Nonrelated Party [Member]
Accounts receivable, net		$ 428	$ 844

[1] Liabilities recognized as a result of consolidating these VIEs do not represent additional claims on the Company’s general assets (Note 2).