Note 2 - Variable Interest Entities - Consolidated VIEs' Assets and Liabilities (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Cash and Cash Equivalents, at Carrying Value		$ 1,592	$ 4,391
Accounts receivable, net		1,567	1,745
Prepayment and deposit to suppliers		4,390	4,567
Other current assets		3,327	1,610
Total current assets		10,876	12,313
Long-term investments		1,604	1,596
Operating Lease, Right-of-Use Asset		1,680	1,761
Property and equipment, net		225	249
Deferred tax assets, net		413	406
Total Assets		17,831	19,658
Accounts payable	[1]	218	205
Advances from customers	[1]	720	739
Accrued payroll and other accruals	[1]	266	438
Taxes payable	[1]	3,280	3,248
Operating lease liabilities	[1]	310	347
Lease payment liabilities related to short-term leases	[1]	103	101
Other current liabilities	[1]	341	437
Total current liabilities		5,322	5,700
Total Liabilities		6,949	7,361
Variable Interest Entity, Primary Beneficiary [Member]
Cash and Cash Equivalents, at Carrying Value		340	578
Accounts receivable, net		1,567	1,745
Prepayment and deposit to suppliers		1,931	2,020
Other current assets		3	2
Total current assets		3,841	4,345
Long-term investments		167	165
Operating Lease, Right-of-Use Asset		98	145
Property and equipment, net		104	113
Deferred tax assets, net		413	406
Total Assets		4,623	5,174
Accounts payable		218	205
Advances from customers		667	515
Accrued payroll and other accruals		39	63
Taxes payable		2,629	2,602
Operating lease liabilities		99	146
Lease payment liabilities related to short-term leases		103	101
Other current liabilities		204	320
Total current liabilities		3,959	3,952
Total Liabilities		$ 3,959	$ 3,952

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