4.
Property and Equipment
Property and
equipment consists of the following:
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| |
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As of
December 31, |
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| |
|
2015 |
|
|
2014 |
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| |
|
(in
thousands) |
|
|
Computers and
equipment
|
|
$ |
2,560 |
|
|
$ |
2,399 |
|
|
Machinery and
equipment
|
|
|
8,264 |
|
|
|
7,278 |
|
|
Building and leasehold
improvements
|
|
|
6,143 |
|
|
|
5,721 |
|
|
|
|
|
|
|
|
|
|
|
Gross property and
equipment
|
|
|
16,967 |
|
|
|
15,398 |
|
|
Less accumulated
depreciation
|
|
|
(9,945 |
) |
|
|
(8,520 |
) |
|
|
|
|
|
|
|
|
|
|
Property and equipment,
net
|
|
$ |
7,022 |
|
|
$ |
6,878 |
|
|
|
|
|
|
|
|
|
|
Depreciation
expense is as follows:
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|
Year ended
December 31, |
|
| |
|
2015 |
|
|
2014 |
|
|
2013 |
|
| |
|
|
|
|
(in thousands) |
|
|
|
|
|
Depreciation
expense
|
|
$ |
1,881 |
|
|
$ |
1,795 |
|
|
$ |
1,573 |
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