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Property and equipment, net
9 Months Ended
Sep. 30, 2019
Property, Plant and Equipment [Abstract]  
Property and equipment, net Property and equipment, net

Property and equipment consisted of the following (in thousands):
 
September 30,
 
December 31,
 
2019
 
2018
Computer equipment
$
201

 
$
201

Office and other equipment
329

 
260

Laboratory equipment
880

 
729

Leasehold improvements
63

 
63

Gross property and equipment
1,473

 
1,253

Less: Accumulated depreciation
(937
)
 
(780
)
Property and equipment, net
$
536

 
$
473


The Company incurred immaterial depreciation expense for both the three months ended September 30, 2019 and 2018, and $0.2 million and $0.1 million for the nine months ended September 30, 2019 and 2018, respectively.