Property, Plant and Equipment, Net
 12 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
Plant, Property and Equipment, Net
PROPERTY, PLANT AND EQUIPMENT, NET
Property, plant and equipment, net consisted of the following at December 31:
(In thousands)

2019
 
2018
Buildings and improvements

$
1,830

 
$
1,168

Machinery and equipment

15,052

 
14,242

Office furniture and equipment, computers and software

13,298

 
5,877

Property, plant and equipment, gross

30,180

 
21,287

Less: accumulated depreciation and amortization

(11,036
)
 
(7,868
)
Property, plant and equipment, net

$
19,144

 
$
13,419


Depreciation expense of property, plant and equipment was $3.4 million, $1.8 million and $1.7 million in 2019, 2018, and 2017, respectively.