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Debt (Tables)
 3 Months Ended
Mar. 31, 2013
Debt

Debt at March 31, 2013 consisted of the following (in thousands):

 

     March 31, 2013  
     Principal     Unamortized
Discount		     Total  

Comerica - Growth Capital Loan A, due 2015

    $ 4,167      $ (40 )    $ 4,127   

Comerica - Revolving Line of Credit, due 2014

      2,828        0        2,828   
  

 

 

    

 

 

    

 

 

  

Total debt

      6,995        (40 )      6,955   

Less: debt - current

      (4,495 )      25        (4,470 ) 
  

 

 

    

 

 

    

 

 

  

Debt - non-current

    $ 2,500      $ (15 )    $ 2,485   
  

 

 

    

 

 

    

 

 

  

Debt at December 31, 2012 consisted of the following (in thousands):

 

     December 31, 2012  
     Principal     Unamortized
Discount		     Total  

Comerica - Growth Capital Loan A, due 2015

    $ 4,583      $ (49 )    $ 4,534   

Comerica - Revolving Line of Credit, due 2014

      3,190        0        3,190   
  

 

 

    

 

 

    

 

 

  

Total debt

      7,773        (49 )      7,724   

Less: debt - current

      (4,857 )      29        (4,828 ) 
  

 

 

    

 

 

    

 

 

  

Debt - non-current

    $ 2,916      $ (20 )    $ 2,896   
  

 

 

    

 

 

    

 

 

  
Expected Principal and Interest Payments on Debt

Principal and interest payments on debt at March 31, 2013 are expected to be as follows for each of the following three years (in thousands):

 

Year ended December 31,

       

2013 (remaining nine months) (2)

    $ 1,541   

2014 (1) (2)

      4,722   

2015 (2)

      1,334   

 

(1) Included outstanding revolving line of credit balance based on the Company’s obligation to repay the outstanding revolving line of credit balance at the end of the revolving line of credit term.
(2) In April 2013, the Company repaid the Growth Capital Loan and all associated accrued interest, as well as a scheduled final payment fee of $0.05 million. These amounts in aggregate were $4.2 million.