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Property Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, plant and equipment consist of the following:
 
 
December 31,
 
 
 
(in thousands)
 
2015
 
2014
 
Useful
Lives
Land
 
$
9,478

 
$
9,181

 
 
Buildings and improvements
 
73,828

 
72,514

 
5-20 yrs.
Machinery and equipment
 
70,791

 
66,799

 
3-10 yrs.
Office furniture and equipment
 
7,128

 
6,254

 
3-7 yrs.
Computer software
 
11,298

 
11,283

 
3-7 yrs.
Transportation equipment
 
5,521

 
5,636

 
3 yrs.
 
 
178,044

 
171,667

 
 
Accumulated depreciation
 
(107,094
)
 
(100,497
)
 
 
 
 
$
70,950

 
$
71,170