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Equipment and Leasehold Improvements
12 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
Equipment and Leasehold Improvements

(6)

 

Equipment and Leasehold Improvements

 

Equipment and leasehold improvements consist of the following:

 

    As of December 31,  
    2019     2018  
Machinery and equipment   $ 16,126     $ 15,513  
Office equipment     855       840  
Office furniture     110       110  
Leasehold improvements     4,839       4,839  
Construction in progress     163       97  
      22,093       21,399  
Less: Accumulated depreciation and amortization     (19,838 )     (19,534 )
    $ 2,255     $ 1,865  

 

Depreciation expense was $305 and $305, for the years ended December 31, 2018 and 2019, respectively.