v3.25.1
SHORT-TERM AND LONG-TERM LOANS (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
SHORT-TERM AND LONG-TERM LOANS    
Short-term loans $ 1,412 $ 1,412
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] us-gaap:PrimeRateMember  
Annual interest rate   4.55%
US$ denominated bank borrowing    
SHORT-TERM AND LONG-TERM LOANS    
Short-term loans $ 1,412  
Long-Term Debt $ 0 $ 33,683
CN | RMB Denominated Bank Borrowing For Financial Institutions in China    
SHORT-TERM AND LONG-TERM LOANS    
Annual interest rate 5.23%  
Long-Term Debt $ 33,039 35,968
CN | RMB Denominated Bank Borrowing For Financial Institutions in China | Repayable Within Twelve Months    
SHORT-TERM AND LONG-TERM LOANS    
Long-term debt reclassified to short-term debt $ 3,883 2,369
CN | RMB denominated borrowing from financial institution in China in august 2023    
SHORT-TERM AND LONG-TERM LOANS    
Interest basis spread on variable rate 0.70%  
Long-Term Debt $ 39,533  
Effective interest rate, as a percent 4.90%  
CN | RMB denominated borrowing from financial institution in China in august 2023 | Repayable Within Twelve Months    
SHORT-TERM AND LONG-TERM LOANS    
Long-term debt reclassified to short-term debt $ 1,412  
CN | Rmb Denominated Borrowing From Financial Institution In China In November 2023    
SHORT-TERM AND LONG-TERM LOANS    
Annual interest rate 5.40%  
Long-Term Debt $ 85,369  
Long-term debt reclassified to short-term debt 3,998  
Wuhan PRC | RMB denominated bank borrowing for purchase of buildings | Repayable Within Twelve Months    
SHORT-TERM AND LONG-TERM LOANS    
Long-term debt reclassified to short-term debt 2,306 2,346
Wuhan PRC | RMB denominated bank borrowing for purchase of buildings | Buildings    
SHORT-TERM AND LONG-TERM LOANS    
Assets pledged as collateral   36,998
Chongqing, Sichuan Province PRC | RMB denominated bank borrowing for purchase of buildings    
SHORT-TERM AND LONG-TERM LOANS    
Long-Term Debt $ 18,233 23,176
Short-term loans | RMB denominated commercial notes    
SHORT-TERM AND LONG-TERM LOANS    
Annual interest rate 3.45%  
Long-term loans | RMB Denominated Bank Borrowing For Financial Institutions in China    
SHORT-TERM AND LONG-TERM LOANS    
Carrying amount of debt $ 77,226 48,870
Long-term loans | RMB denominated borrowing from financial institution in China in august 2023 | Repayable Within Twelve Months    
SHORT-TERM AND LONG-TERM LOANS    
Carrying amount of debt 140,681  
Long-term loans | CN | RMB denominated borrowing from financial institution in China in august 2023    
SHORT-TERM AND LONG-TERM LOANS    
Carrying amount of debt $ 50,118  
Long-term loans | Beijing PRC | RMB denominated bank borrowing for purchase of buildings | Buildings    
SHORT-TERM AND LONG-TERM LOANS    
Assets pledged as collateral   160,540
Long-term loans | Wuhan PRC | RMB denominated bank borrowing for purchase of buildings    
SHORT-TERM AND LONG-TERM LOANS    
Annual interest rate 4.45%  
Long-Term Debt $ 7,499 9,974
Long-term loans | Wuhan PRC | RMB denominated bank borrowing for purchase of buildings | Buildings    
SHORT-TERM AND LONG-TERM LOANS    
Assets pledged as collateral $ 30,078  
Long-term loans | Chongqing, Sichuan Province PRC | RMB denominated bank borrowing for purchase of buildings    
SHORT-TERM AND LONG-TERM LOANS    
Interest basis spread on variable rate 25.00%  
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] sfuny:PeoplesBankOfChinaBenchmarkRateMember  
Assets pledged as collateral $ 136 0
Carrying amount of debt 52,606 76,409
Long-term loans | Chongqing, Sichuan Province PRC | RMB denominated bank borrowing for purchase of buildings | Repayable Within Twelve Months    
SHORT-TERM AND LONG-TERM LOANS    
Long-term debt reclassified to short-term debt $ 4,504 $ 4,580