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CASH AND CASH EQUIVALENTS (Tables)
 6 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
CASH AND CASH EQUIVALENTS    
Schedule of cash and cash equivalents

 

 
   JUNE 30,
2013		   DECEMBER 31,
2012		  
 
   (in thousands)
  

Cash at bank and on hand

   $ 2,333   $ 2,823  

Bankers' acceptances

     78     1,369  

Treasury bills

     949     5,026  

Promissory notes

     2,372     6,020  

Commercial papers

     2,184     753  

Term deposit notes

     1,902     2,714  
           

 

     9,818     18,705  

Less: restricted cash equivalents

    
(78
)		  
(302
)
           

 

   $ 9,740   $ 18,403  
           

 

 
   DECEMBER 31,  
 
   2012   2011  
 
   (in thousands)
  

Cash at bank and on hand

   $ 2,823   $ 1,287  

Bankers' acceptances

     1,369     5,501  

Treasury bills

     5,026     492  

Promissory notes

     6,020     639  

Commercial papers

     753     1,963  

Term deposit notes

     2,714     —  
           

 

     18,705     9,882  

Less: restricted cash equivalents

     (302 )   —  
           

 

   $ 18,403   $ 9,882