Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net loss	$ (5,974)	$ (9,791)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization	1,288	2,215
Amortization of operating lease right-of-use assets	364	341
Share-based compensation expenses	107	186
Loss on disposal of fixed assets	6	0
Other income/expenses)	433	596
Impairment on intangible assets	1,231	2,123
Provision of allowances for doubtful accounts	1,033	2,394
Change in fair value of warrant liabilities	(185)	(1,854)
Deferred taxes	(2)	(3)
Gain on disposal of subsidiaries	(10)	0
Effect of termination of an operating lease contract	(138)	0
Other non-operating (income)/losses	(300)	(113)
Changes in operating assets and liabilities
Accounts receivable	593	(276)
Prepayment and deposit to suppliers	36	1,652
Due from related parties	0	59
Other current assets	3	2
Accounts payable	(1)	(848)
Advances from customers	115	(420)
Accrued payroll and other accruals	(80)	60
Other current liabilities	(184)	836
Taxes payable	(4)	(6)
Operating lease liabilities	(343)	(302)
Lease payment liability related to short-term leases	0	(40)
Net cash used in operating activities	(2,012)	(3,189)
Cash flows from investing activities
Payment for leasehold improvements and purchase of vehicles, furniture and office equipment	(81)	0
Net proceeds from disposal of fixed assets	14	0
Cash effect of deconsolidation of subsidiaries	(3)	0
Investment and advances to ownership investee entities	(64)	0
Proceeds from disposal of subsidiaries	3	0
Proceeds from disposal of ownership investee entities	426	0
Repayment of short-term loans from ownership investee entities	0	12
Short-term loans to unrelated parties	(2,000)	(2,600)
Repayment of short-term loans and interest income from unrelated parties	168	2,140
Deposit and prepayment repaid from/(paid for) contracts of other investing activities	0	1,000
Net cash provided by/(used in) investing activities	(1,537)	552
Cash flows from financing activities
Proceeds from issuance of common stock and warrants (net of cash offering cost of $1,600)	0	0
Net cash provided by financing activities	0	0
Effect of exchange rate fluctuation on cash and cash equivalents	(25)	(145)
Net (decrease)/increase in cash and cash equivalents	(3,574)	(2,782)
Cash and cash equivalents, at beginning of the year	4,391	7,173
Cash and cash equivalents, at end of the year	817	4,391
Supplemental disclosure of cash flow information
Income taxes paid	0	0
Interest expense paid	$ 0	$ 0