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Restructuring
12 Months Ended
Dec. 31, 2013
Restructuring  
Restructuring

R.    Restructuring

        During 2012, we initiated corporate restructurings, including a workforce reduction plan. The majority of the workforce reduction plan was associated with our manufacturing and development infrastructure, including our decision to divest our Cambridge, Massachusetts manufacturing facility. The workforce reductions were substantially completed by the end of 2012 and the majority of the related expenses were paid by the end of 2012.

        The following table outlines the components of our restructuring expenses which were recorded in operating expenses and current liabilities for 2013 and 2012 (in thousands):

 
  December 31,  
 
  2013   2012  

Accrued restructuring, beginning of period

  $ 1,383   $ 2,366  

Employee severance, benefits and related costs

        1,624  

Payments

    (1,383 )   (2,674 )

Inventory and other adjustments

        67  
           

Accrued restructuring, end of period

  $   $ 1,383