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LONG TERM INVESTMENTS (Tables)
 9 Months Ended
Sep. 30, 2020
LONG TERM INVESTMENTS [Abstract]  
Components of Long-Term Investment
The components of long-term investments were as follows:

 
  
September 30,
2020
    
December 31,
2019
  
Ninebell
  
$
2,088
    
$
1,538
  
Shengyi
    
134
      
107
  
Hefei Shixi
    
4,358
      
4,289
  
Total
  
$
6,580
    
$
5,934