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Long-Term Debt (Tables)
 6 Months Ended
Jun. 30, 2013
Debt Disclosure [Abstract]  
Augusta Debt Payment Schedule

(in thousands)

Payment date

June 30,

2013

December31,

2012

June 1, 2013 $   -     $   750 
June 1, 2014 750  750 
June 1, 2015 1,000  1,000 
Unamortized discount   (183)  (264)
Total 1,567  2,236 
Current portion 700    727 
Long-term debt $867  $1,509 
Augusta Debt Interest Accretion
(in thousands)

Three months ended

June 30,

Six months ended

June 30,

  2013 2012 2013 2012
Interest accretion on Augusta debt $ 38  $49  $ 81  $102 
Summary 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 
        Borrowing 1,000    1,000 
        Amortization of discount to interest cost  -      54  54 
      Ending June 30, 2013 $3,500  $(465) 3,035 
Interest Cost RMB Loan
(in thousands) Three months ended June 30, 2013 Six months ended June 30, 2013
Interest paid in cash $ 43  $ 70 
Amortization of the RMB Warrants discount 54  108 
Amortization of RMB deferred financing costs   49    98 
  Total interest expense related to the RMB Loan $146  $276