v3.26.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash flows from operating activities:    
Net income (loss) $ (6,674) $ 1,170
Adjustments to reconcile net loss to cash used in operating activities:    
Depreciation expenses 19 80
Share-based compensation 461 244
Non-cash operating lease expenses 192 184
Gain on sale of subsidiary interests 0 (6,986)
Changes in assets and liabilities:    
Short-term investments 0 254
Advances to suppliers 76 (1)
Prepaid expenses and other current assets (107) (74)
Other noncurrent assets (52) (12)
Accounts payable 4,154 23
Accrued expenses (1,395) 825
Operating lease liabilities (180) (178)
Other current liabilities 475 756
Deferred revenue (500) (500)
Other noncurrent liabilities 254 17
Net cash used in operating activities (3,277) (4,198)
Cash flows from investing activities:    
Acquisitions of property and equipment 0 (50)
Purchase of short-term investments (7,161) (3,000)
Proceeds from maturity of short-term investments 11,640 2,000
Proceeds from sale of subsidiary interests 0 7,354
Net cash provided by investing activities 4,479 6,304
Cash flows from financing activities:    
Capital contribution from noncontrolling interests 280 0
Repayments of loans (4,429) 0
Net cash provided by financing activities (4,157) 0
us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperationsAbstract    
Effect of foreign exchange rate changes 22 5
Net increase in cash and cash equivalents (2,933) 2,111
Cash and cash equivalents from continuing operations at beginning of period 7,786 2,922
Cash and cash equivalents from discontinued operations at beginning of period 4,352 13,125
Less: cash and cash equivalents from discontinued operations at end of period 5,169 11,631
Cash and cash equivalents from continuing operations at end of period 4,036 6,527
Supplemental disclosures of cash flow information    
Interest paid 0 0
Interest received 39 22
Income taxes paid 0 0
Non-cash activities:    
Operating lease right-of-use assets obtained in exchange for operating lease liabilities 6 39
Parent [Member]    
Cash flows from operating activities:    
Net income (loss) (2,159) 4,477
Cash flows from financing activities:    
Payments of shares issuance costs $ (8) $ 0