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

 

Property and equipment consist of the following (in thousands):

 

   As of December 31, 
   2019   2018 
         
Computers, software, furniture and fixtures  $1,406   $1,407 
Equipment under capital lease   3,348    3,525 
Less accumulated depreciation and amortization   (3,171)   (2,448)
Property and equipment, net  $1,583   $2,484 

 

Depreciation and amortization expense was $0.9 million and $1.0 million for the years ended December 31, 2019 and 2018, respectively.