Note 2 - Variable Interest Entities - Consolidated VIEs' Assets and Liabilities (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Cash and Cash Equivalents, at Carrying Value		$ 1,314	$ 4,391
Accounts receivable, net		771	1,745
Prepayment and deposit to suppliers		4,874	4,567
Other current assets, net		2,422	1,610
Total current assets		9,381	12,313
Long-term investments		1,000	1,596
Operating Lease, Right-of-Use Asset		1,406	1,761
Property and equipment, net		165	249
Deferred tax assets, net		394	406
Total Assets		14,779	19,658
Accounts payable	[1]	196	205
Advance from customers *	[1]	1,133	739
Accrued payroll and other accruals	[1]	132	438
Taxes payable	[1]	3,155	3,248
Operating lease liabilities	[1]	216	347
Lease payment liability related to short-term leases *	[1]	98	101
Other current liabilities	[1]	162	437
Total current liabilities		5,092	5,700
Total Liabilities		6,538	7,361
Variable Interest Entity, Primary Beneficiary [Member]
Cash and Cash Equivalents, at Carrying Value		691	578
Accounts receivable, net		770	1,745
Prepayment and deposit to suppliers		2,401	2,020
Other current assets, net		2	2
Total current assets		3,864	4,345
Long-term investments		0	165
Operating Lease, Right-of-Use Asset		0	145
Property and equipment, net		77	113
Deferred tax assets, net		394	406
Total Assets		4,335	5,174
Accounts payable		196	205
Advance from customers *		1,133	515
Accrued payroll and other accruals		39	63
Taxes payable		2,522	2,602
Operating lease liabilities		0	146
Lease payment liability related to short-term leases *		98	101
Other current liabilities		36	320
Total current liabilities		4,024	3,952
Total Liabilities		$ 4,024	$ 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).