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Property and equipment, net
3 Months Ended
Mar. 31, 2016
Property, Plant and Equipment [Abstract]  
Property and equipment, net
Property and equipment, net

Property and equipment consisted of the following (in thousands):
 
March 31,
 
December 31,
 
2016
 
2015
 
 
 
 
Computer equipment
$
329

 
$
329

Office and other equipment
301

 
256

Laboratory equipment
425

 
425

Leasehold improvements
51

 
51

Gross property and equipment
1,106

 
1,061

Less: Accumulated depreciation
(505
)
 
(447
)
Net property and equipment
$
601

 
$
614



The Company incurred immaterial depreciation expense for the three months ended March 31, 2016 and 2015.