v3.26.1
CONDENSED FINANCIAL INFORMATION OF REGISTRANT - Condensed Balance Sheets (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Current assets:        
Cash and cash equivalents $ 5,632 $ 13,468    
Investment in equity securities, at fair value   2,623    
Accounts receivable, net 4,092 15,345    
Inventories 1,598 5,252    
Prepaid expenses and other 2,135 2,888    
Total current assets 13,457 39,576    
Property, plant and equipment, net 6,968 7,868    
Long-term investments 1,716 1,913    
Total assets 25,650 53,674    
Current liabilities:        
Accounts payable 1,065 2,723    
Accrued and other current liabilities 24,171 15,344    
Convertible notes due to a related party 4,243      
Total current liabilities 49,670 36,452    
Other liabilities 13,262 15,371    
Total liabilities 62,932 51,823    
Shareholders' (deficit) equity:        
Ordinary shares 2 2    
Additional paid-in capital 722,238 713,302    
Treasury shares (9,604) (9,604)    
Accumulated other comprehensive loss (1,785) (1,774)    
Accumulated deficit (748,133) (700,075)    
Total shareholders' (deficit) equity (37,282) 1,851 $ 24,165 $ 44,574
Total liabilities and shareholders' (deficit) equity 25,650 53,674    
Parent Company        
Current assets:        
Cash and cash equivalents 1,482 9,162    
Investment in equity securities, at fair value   2,623    
Accounts receivable, net 2,844 15,234    
Inventories   5,231    
Prepaid expenses and other 446 1,065    
Total current assets 4,772 33,315    
Intercompany receivables 779 779    
Property, plant and equipment, net 12 16    
Long-term investments 1,716 1,716    
Investment in subsidiaries   635    
Total assets 7,279 36,461    
Current liabilities:        
Accounts payable 1,065 2,650    
Accrued and other current liabilities 8,326 4,183    
Convertible notes due to a related party 4,243      
Intercompany payables 4,615 15,956    
Total current liabilities 18,249 22,789    
Other liabilities 11,821 11,821    
Provision of excess loss in subsidiaries 14,491      
Total liabilities 44,561 34,610    
Shareholders' (deficit) equity:        
Ordinary shares 2 2    
Additional paid-in capital 722,238 713,302    
Treasury shares (9,604) (9,604)    
Accumulated other comprehensive loss (1,785) (1,774)    
Accumulated deficit (748,133) (700,075)    
Total shareholders' (deficit) equity (37,282) 1,851    
Total liabilities and shareholders' (deficit) equity $ 7,279 $ 36,461