Property and equipment, net consisted of the following (in thousands):
As of December 31,
2015
2014
Laboratory equipment
$
2,528
2,697
Software and computer equipment
441
465
Furniture and fixtures
153
151
Vehicles
204
188
Leasehold improvements
1,900
1,882
Assets under construction
18
—
Property and equipment, gross
5,244
5,383
Less accumulated depreciation and amortization
(4,659
)
(4,655
Property and equipment, net
585
728
Schedule of property plant and equipment.
No definition available.