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Long Term Debt (Tables)
 3 Months Ended
Mar. 31, 2013
Debt Disclosure [Abstract]  
Long Term Debt Payments Due August

(in thousands)

Payment date

March 31,

2013

December31,

2012

June 1, 2013 750  750 
June 1, 2014 750  750 
June 1, 2015 1,000  1,000 
Unamortized discount   (221)  (264)
Total 2,279  2,236 
Current portion 741    727 
Long-term debt $1,538  $1,509 
Long Term Debt RMB Loan
  RMB RMB RMB
  (in thousands) Loan borrowing Warrant discount

Long-term

Debt

      Beginning balance December 31, 2012 $ 1,500  $(573) $927 
        Borrowing 1,000    1,000 
        Amortization of discount to interest cost  -      54  54 
      Ending balance March 31, 2013 $2,500  $(519) 1,981 
Long Term Debt Interest RMB Loan
(in thousands) Three months ended March 31,
  2013
Interest paid in cash $ 27 
Amortization of the RMB Warrants discount 54 
Amortization of RMB deferred financing costs   49 
  Total interest expense related to the RMB Loan $130