Note 2 - Variable Interest Entities - Consolidated VIEs' Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Cash and cash equivalents	$ 467	$ 817
Accounts receivable, net	749	844
Prepayment and deposit to suppliers	5,210	4,505
Other current assets, net	2,869	2,794
Total current assets	9,295	8,960
Goodwill, net	78	0
Intangible assets, net	646	841
Property and equipment, net	187	215
Deferred tax assets, net	404	401
Total Assets	11,404	11,233
Accounts payable	266	201
Advances from customers	1,427	843
Accrued payroll and other accruals	403	350
Taxes payable	3,189	3,194
Lease payment liabilities related to short-term leases	99	99
Other current liabilities	477	144
Total current liabilities	5,861	4,855
Deferred tax liabilities	4	0
Total Liabilities	5,988	4,979
Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents	164	367
Prepayment and deposit to suppliers	2,690	2,005
Other current assets, net	5	2
Total current assets	3,608	3,218
Goodwill, net	78	0
Intangible assets, net	15	0
Property and equipment, net	125	139
Deferred tax assets, net	404	401
Total Assets	4,230	3,758
Accounts payable	266	201
Advances from customers	1,427	843
Accrued payroll and other accruals	59	37
Taxes payable	2,551	2,555
Lease payment liabilities related to short-term leases	99	99
Other current liabilities	333	56
Total current liabilities	4,735	3,791
Deferred tax liabilities	4	0
Total Liabilities	4,739	3,791
Variable Interest Entity, Primary Beneficiary [Member] | Nonrelated Party [Member]
Accounts receivable, net	$ 749	$ 844