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Equipment and Leasehold Improvements
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Equipment and Leasehold Improvements
(5) Equipment and Leasehold Improvements

Equipment and leasehold improvements consist of the following:

 

     As of December 31,  
     2014      2013  

Machinery and equipment

   $ 14,095       $ 13,737   

Office equipment

     766         752   

Office furniture

     110         110   

Leasehold improvements

     4,760         4,749   

Construction in progress

     70         45   
  

 

 

    

 

 

 
  19,801      19,393   

Less: Accumulated depreciation and amortization

  (17,663   (16,929
  

 

 

    

 

 

 
$ 2,138    $ 2,464   
  

 

 

    

 

 

 

Depreciation expense was $734 and $866, for the years ended December 31, 2014 and 2013, respectively.