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Property and Equipment
 12 Months Ended
Dec. 31, 2016
Property and Equipment  
Property and Equipment

4. Property and Equipment

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

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

 

 

2016

 

2015

 

Laboratory equipment

    

$
1,367

    

$
311

 

Office equipment

 

 
139

 

 
69

 

 

 

 
1,506

 

 
380

 

Less: accumulated depreciation

 

 
(358)

 

 
(349)

 

 

 

$
1,148

 

$
31

 

 

Depreciation expense was $23, $11 and $5 thousand for the years ended December 31, 2016, 2015 and 2014, respectively.