Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities
Net loss	$ (1,403)	$ (1,714)	$ (2,546)	$ (2,431)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization			645	1,108
Amortization of operating lease right-of-use assets			208	134
Share-based compensation expenses			83	84
Provision for allowances for credit losses			455	947
Impairment on long-term investments	209	(0)	209	(0)
Change in fair value of warrant liabilities	(71)	(987)	(172)	(1,782)	$ 185	$ 2,039
Disposal of fixed assets			3	0
Deferred taxes			(2)	(4)
Other non-operating income			(150)	(72)
Changes in operating assets and liabilities
Accounts receivable			588	(290)
Prepayment and deposit to suppliers			86	1,100
Due from related parties			0	60
Other current assets			0	29
Long-term deposits and prepayments			0	(51)
Accounts payable			6	(513)
Advance from customers			208	(402)
Accrued payroll and other accruals			(303)	(220)
Other current liabilities			23	311
Taxes payable			(7)	8
Lease payment liability related to short-term leases			0	(41)
Operating lease liabilities			(196)	(119)
Net cash used in operating activities			(862)	(2,144)
Cash flows from investing activities
Investment and advance to ownership investee entities			(43)	0
Proceeds from disposal of long-term investments			433	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			148	2,109
Net cash used in investing activities			(1,462)	(479)
Cash flows from financing activities
Net cash provided by/(used in) financing activities			0	0
Effect of exchange rate fluctuation on cash and cash equivalents			(67)	(96)
Net decrease in cash and cash equivalents			(2,391)	(2,719)
Cash and cash equivalents at beginning of the period			4,391	7,173	7,173
Cash and cash equivalents at end of the period	$ 2,000	$ 4,454	2,000	4,454	$ 4,391	$ 7,173
Supplemental disclosure of cash flow information
Income taxes paid			0	0
Interest expense paid			$ 0	$ 0