Note 2 - Variable Interest Entities - Consolidated VIEs' Assets and Liabilities (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Cash and Cash Equivalents, at Carrying Value		$ 2,000	$ 4,391
Accounts receivable, net		1,045	1,745
Prepayment and deposit to suppliers		4,346	4,567
Other current assets, net		3,043	1,610
Total current assets		10,434	12,313
Long-term investments		1,000	1,596
Operating Lease, Right-of-Use Asset		1,498	1,761
Property and equipment, net		191	249
Deferred tax assets, net		393	406
Total Assets		16,246	19,658
Accounts payable	[1]	204	205
Advance from customers *	[1]	912	739
Accrued payroll and other accruals	[1]	132	438
Taxes payable	[1]	3,131	3,248
Operating lease liabilities	[1]	255	347
Lease payment liability related to short-term leases *	[1]	97	101
Other current liabilities	[1]	223	437
Total current liabilities		4,967	5,700
Total Liabilities		6,459	7,361
Variable Interest Entity, Primary Beneficiary [Member]
Cash and Cash Equivalents, at Carrying Value		1,157	578
Accounts receivable, net		1,045	1,745
Prepayment and deposit to suppliers		1,926	2,020
Other current assets, net		2	2
Total current assets		4,130	4,345
Long-term investments		0	165
Operating Lease, Right-of-Use Asset		47	145
Property and equipment, net		89	113
Deferred tax assets, net		393	406
Total Assets		4,659	5,174
Accounts payable		204	205
Advance from customers *		887	515
Accrued payroll and other accruals		34	63
Taxes payable		2,501	2,602
Operating lease liabilities		47	146
Lease payment liability related to short-term leases *		97	101
Other current liabilities		110	320
Total current liabilities		3,880	3,952
Total Liabilities		$ 3,880	$ 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).